An agency retainer commits to deliverables because deliverables are the part it can control

Agencies report follower growth, engagement rate and content volume because those are the things they can reliably influence inside a retainer ^[7]. Whether any of it converts to pipeline depends on the client's product, sales motion and pricing, all of which extend well beyond the agency's scope ^[8].

The remedy the column proposes is narrower than accountability to revenue. It asks both sides to agree a shared "signal metric" before work begins, sitting between a vanity metric and a revenue outcome, specific enough to be meaningful but close enough to the agency's work to be fair, in writing before month one ^[9]. For a B2B startup it suggests demo requests from organic channels; for a consumer brand, repeat purchase rate among customers acquired through content ^[10]. Writing that line means deciding which part of the funnel the vendor owns, and the column puts the product, the sales motion and the pricing on the client's side of it ^[8].

Timing carries as much weight as wording. The column's second pre-signing question sets the first review at 90 days ^[11], while the horizon it uses for judging whether the engagement was worth it is six months ^[1]. Ninety days is about three months, so that review lands halfway through the period the work will be judged on ^[16]. The founder in the anecdote hired at month eight and took stock six months later, roughly fourteen months into the company ^[17]. Asked what success had looked like in the original scope of work, he said, "I guess we never actually defined it" ^[4]. If the answer to the 90-day question involves impressions, follower counts or share of voice, the column treats that as a signal worth paying attention to ^[12].

An early-stage founder has no baseline from which to name a number. The column's own diagnosis says as much: activity and progress are easy to conflate when there is no clear baseline data and no specific number you are trying to move ^[19]. That makes the 90-day checkpoint a deadline for establishing the baseline, paid for out of the first quarter of the retainer. The cost falls on the buyer either way, because the account here does not turn on dishonest agencies or naive founders ^[14].

The evidence is one contributor's opinion piece built on one engagement ^[18], and it does not say what the retainer cost. The vendor test it offers survives that limit: an agency that cannot point to a client whose business measurably grew because of its work is a red flag ^[13], and the agencies that will serve a client best, the column argues, are the ones willing to be held accountable to a number that actually matters to the business ^[15].