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GTM Strategy & Commercial Growth

The buyer
first. Always.

Most GTM strategies are built on a buyer hypothesis that was formed early, tested lightly, and then treated as settled. Marketside goes and gets the real evidence. Commercial Immersion. Market Reconciliation. The Table.

Work with Chelsea The philosophy
Why Marketside Exists

Every GTM motion is built on a buyer hypothesis. Most stop testing it.

The failure mode in GTM is not ignorance — it is false confidence. Companies go to market with conviction and real early insight. They have an ICP, a persona, a set of buyer conversations. The problem is that hypothesis was formed early, tested lightly, and then treated as settled.

From that point forward, the entire motion compounds on top of those assumptions — the messaging, the pipeline, the roadmap, the hiring plan. The further the company gets from the original buyer conversations, the more confident the team feels, and the less grounded that confidence actually is.

"Markets do not hold still while you build. But most GTM motions act as if they do."

AI is now flooding the market with agentic research tools that synthesize buyer data and generate ICP hypotheses at scale. They produce dashboards that look authoritative. But agentic research can only confirm what you already think you know. It cannot capture what buyers are privately prioritizing right now, how their politics are shifting, or what they would say candidly without a sales agenda.

The companies that win are the ones whose buyer understanding is grounded in real, ongoing, primary-source conversations — not personas built from public data and historical patterns.

01
The assumption is undertested from the start
55% drop in quality SDR conversations since 2014
Pain-based buyer segmentation — built on real insight — produces 3× higher meeting rates. Most companies never get there.
02
Validation stops when building starts
ICP drift begins the moment companies expand targeting without re-validating whether the new segment shares the urgency trigger that fueled early growth. Firmographic clarity is not buying clarity.
03
The environment shifts faster than the narrative
95% of winning vendors are on the buyer's Day One shortlist
Decisions are largely made before sellers are ever contacted. If your narrative hasn't kept pace, you won't make the list.
04
The expansion buyer is invisible
68% of B2B buyers reject vendors who clash with their values
Not firmographic fit — underlying values, risk tolerance, and priorities. The next ICP is unmapped while the current motion stalls.
05
One conversation derails the roadmap
95% of new products fail annually — Harvard Business School
A single buyer signal becomes a product decision. The result is a fragmented product and a fractured narrative built on unverified signals.
06
Agentic research replaces real conversation
61% of AI-generated leads did not outperform traditional methods
"Don't trust the AI. It hasn't talked to your actual customers." — Ardath Albee, leading B2B persona expert. Real buyer conversation cannot be synthesized.
The Approach

Built from the market out.

There is no playbook for what Marketside does. The work looks different every time. What is consistent is the orientation.

The Engagement Model
Commercial Immersion
A simultaneous inside-out and outside-in assessment of the commercial reality of the business. Not advisory work from a distance. Full immersion — inside the org, out in the market, both at once. Most consultants do one or the other. The reconciliation only happens because both are happening simultaneously.
The Output
Market Reconciliation
A clear, honest picture of the gap between what the GTM motion assumes about the buyer and what the market is actually telling you. Not a framework borrowed from another company's playbook. A motion built for this product, this buyer, this moment — grounded in what the market is actually saying right now.
The Inside Work
Leadership meetings across all functions — real conversations, not check-box exercises
Demo recordings and sales call review — how the product is pitched vs. how buyers respond
CRM deep-dive — pipeline health, deal velocity, closed-lost patterns, expansion rates
Messaging and collateral audit — positioning vs. how buyers actually describe the problem
Conversations with every team member — where the real opportunities and friction live
The Outside Work
Direct conversations with prospects, buyers, and closed-lost accounts — at conferences and events
Industry network conversations — operators and peers who speak candidly about differentiation
Investor and VC conversations — how the category is being evaluated at the capital level
Competitive landscape grounded in real buyer perception, not marketing positioning
Adjacent buyer segment identification before the current motion stalls

"Most consultants do one or the other. The reconciliation only happens because both are happening simultaneously — which means walking into a leadership meeting and saying: here is what your team believes is true, here is what your closed-lost accounts told us at the conference last week, and here is the gap."

— Chelsea Raab Gabrielli, Founder, Marketside
Three Ways to Engage

Same philosophy. Different depth.

The buyer-grounded approach runs through every engagement. The depth, bandwidth, and scope vary.

02
Most Common
GTM Advisory
The same buyer-grounded approach, scoped to a specific problem or phase. A Market Reconciliation sprint — inside and outside work, the picture produced, a motion handed back that is grounded in market reality. Right for companies with a strong team who need the strategic architecture and buyer validation underneath it.
Defined deliverables and timeframe.
SprintStrategy8–12 weeks
03
Ongoing Access
The Table
The product version of the philosophy. A curated network of senior executives who convene with growth-stage companies for structured, honest, face-to-face conversations on a recurring basis. The natural next step for companies who want to institutionalize ongoing buyer validation rather than revisit it engagement by engagement.
Scales independently. See The Table section below.
RecurringAdvisory BoardSprint
A few things the work has uncovered — and what happened when the gap closed.
01
The pitch language wasn't landing — and nobody knew why.
After reviewing demo recordings and talking to closed-lost accounts at an industry conference, found that the team was describing the product in terms that meant nothing to the buyer. Rebuilt the messaging from buyer interviews. The team started closing conversations they had been losing.
02
A single buyer request was about to become a product decision.
One promising conversation had the founder ready to build a new feature. Outside conversations with similar buyers revealed it was a point solution for one person's specific situation — not a market pattern. Roadmap stayed intact. The real signal surfaced two weeks later.
03
The ICP was right — for 2022.
Budget cycle shifts and a compressed market had changed what the target buyer considered essential. The product was still strong. The narrative was eighteen months behind. Rebuilt the motion around the buyer's current reality — pipeline velocity improved within 60 days.
04
The next growth phase was sitting in the closed-lost data.
A pattern the team had written off as "not a fit" turned out to be a distinct buyer segment with a slightly different use case — and significantly less competition. Became the foundation of a second ICP and a new outbound motion.
A Marketside Product

The Table.

Senior executive access. Real conversations. Insight that no AI tool can replicate.

Every AI tool in the market can synthesize buyer data, build personas, and model ICP fit. None of them can put a senior executive in a room and ask them — honestly, candidly, without a sales agenda — what they actually care about, how their priorities are shifting, and what it would actually take to earn their business.

The Table does that. It is a curated network of senior executives — sourced through years of hands-on enterprise sales leadership and relationship development across major accounts and industries — who convene with growth-stage companies for structured, honest, face-to-face conversations.

The expertise behind The Table is not just network access. It is voice of customer methodology: knowing how to structure the conversation, ask the right questions, and synthesize what buyers actually mean versus what they say.

The value is not just the insight from a single session. It is the ongoing access — the ability to return to the market as the product evolves, as competitors emerge, as priorities shift, and ask: is this still right? Is this one buyer's request a real market signal, or a point solution for their specific situation?

For GTM & Revenue Teams
Ongoing access to real buyers to keep the motion calibrated. Validate assumptions before they compound. Distinguish real market signals from single-conversation noise. Update the narrative as the market shifts. Identify the next buyer segment before growth stalls.
For Product & AI Teams
Primary-source buyer intelligence for training buyer-persona agents. Real senior executives, in their own words, describing actual priorities and decision criteria — unfiltered by a sales dynamic. The corpus compounds over time. No competitor can replicate it.
Emerging product direction. Right conversation for the right client.
Standing Engagement
Advisory Board
A standing group of 5–8 senior executives, convened quarterly. Structured sessions, synthesized insight, and an ongoing read on how your target buyer sees your market, your messaging, and your product.
Quarterly · Ongoing · 6-month pilot available
Single Session
Market Insight Sprint
A single focused session with 4–6 senior executives. Designed for a specific question — a messaging test, a product concept, a pricing assumption, a new market hypothesis. Full written synthesis delivered within 5 days.
Single session · Can be bundled with GTM engagement
The room
Access to people worth being in a room with — people you couldn't easily get in front of otherwise.
Face-to-face in an AI world
Real conversation is increasingly rare. Gartner projects 75% of B2B buyers will prefer human interaction over AI by 2030.
Early access
Genuine visibility into products and thinking that may be directly useful in the advisor's own role.
The relationship
Advisors show up because the relationship was earned — not because they were recruited. That is the only kind of access worth having.
Chelsea Raab Gabrielli

Fifteen years in the room. Not advising on it.

The reason Marketside exists is simple: the work only works if you have been in the room. Not advising on the room. In it. Fifteen years as an operator — launching and scaling enterprise sales, business development, and strategic account teams from scratch. Closing and managing tens of millions of dollars of revenue across some of the most complex, relationship-dependent deals in enterprise sales.

That experience is why the voice of the customer sits at the center of everything here. Not as a methodology borrowed from a framework — as a belief built from watching, firsthand, what happens when a team is selling on internal conviction versus selling from real buyer insight. The difference is not marginal. It changes how the team shows up, how they handle objections, how fast they close, and how long clients stay.

There is also a belief underneath all of this about how sales actually works. The best deals — the ones that close cleanly, expand consistently, and produce the referrals that build a business — are not transactions. They are the result of relationships built over time, on trust, through genuine engagement with what the buyer actually needs. Sales does not end at the signature. The relationship is the asset.

That is what makes The Table possible. The executives who sit at The Table show up because the relationship was earned — not because they were recruited. That is the only kind of access worth having.

"There is no shortcut to market reality. You have to go get it."
Get in Touch

The right conversation starts with the right question.

Whether you're thinking about GTM strategy, The Table, or just want to understand if Marketside is the right fit — reach out. The first conversation is always free.