October 29, 2026
Beyond the Brief: What Strategic Agency Partnerships Signal for GTM Leadership
Vodacom's recent creative agency appointment isn't just a vendor change; it's a profound signal about the evolving demands on GTM leadership…
Read →Leadership Advisory · Retained Executive Search
The Rosenstein Group works with CEOs, founders, boards, and VC, PE, and growth equity investors at Series A to pre-IPO B2B SaaS companies in MarTech, eCommerce, Composable Commerce, Supply Chain SaaS, and Enterprise AI.

GTM leaders our clients have hired through TRG
GTM placements
Including 16 executive placements for Demandware.
SaaS clients, from Seed to pre-IPO
repeat client rate
Internal data explains yesterday. External intelligence predicts tomorrow.
Our clients







What it is. A leadership advisory firm that also delivers retained executive search. Search is one implementation capability, not the business model.
Who it's for. CEOs, founders, boards, and investors at Series A to pre-IPO B2B SaaS companies in MarTech, eCommerce, Composable Commerce, Supply Chain SaaS, and Enterprise AI.
What it delivers. Leadership decisions that hold: the right GTM leaders, and an honest read on the teams already in the seat.
Business context, first-year outcomes, failure modes, the team to be built, and board expectations, agreed before recruiting starts.
We define how this role must sell, market, or serve before deciding who could do it.
We submit short. Volume submission moves the screening burden onto your calendar, and executive attention is the scarcest thing you have.
Structured check-ins through the first months, so issues surface while they are still easy to fix.
Kolbe, a licensed third-party instrument, gives a read on how a candidate instinctively approaches problems and execution. It is one input to a human decision, never a screen or a cutoff.
Every advancement decision is made by a person.
Leadership advisory
What clients say
“For go-to-market hires, first, you have to define what experience you want to deliver to customers. Second, you assess whether a candidate can deliver that experience -- ideally in ways you never even imagined. Third, you confirm that your company can provide that candidate the challenge and opportunity she/he seeks. … Darrell understands all of these steps.”
“Given the strength of his network, it's clear why so many retail software companies trust him with executive searches. Darrell doesn't just know the key players; he understands the nuances of the retail tech business and exactly what's required to succeed, no matter the category or niche.”
“Darrell's knowledge and connections in the MarTech world were extremely helpful from securing a board member to identifying and approaching alliance partners to formulating business strategy. He is a true asset to any startup founder”
MarTalks Podcast
Founders, CEOs, and operators shaping B2B software talk through what they are building and what they see in the market, and leave with content their teams keep using. Hosted by Darrell Rosenstein, with 12,000 total listeners across all episodes.
Explore the podcastOctober 29, 2026
Vodacom's recent creative agency appointment isn't just a vendor change; it's a profound signal about the evolving demands on GTM leadership…
Read →October 29, 2026
Recent leadership appointments in the sector underscore a critical evolution: Supply Chain SaaS companies are prioritizing sophisticated GTM…
Read →October 28, 2026
Unilever's Liquid I.V. has brought in a PepsiCo veteran for its top marketing role, signaling a critical evolution in what boards and CEOs s…
Read →Stay in the loop
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