Vercel COO Jean Grosser's litmus test for a great salesperson is that engineers shouldn't be able to tell they aren't a PM for at least 10 minutes. This requires deep product knowledge, enabling sales to act as an R&D function by translating customer feedback into valuable product signals.

A sales leader's job isn't to ask their team how to sell more; it's to find the answers themselves by joining sales calls. Leaders must directly hear customer objections and see reps' mistakes to understand what's really happening. The burden of finding the solution is on the leader.

To get honest, ground-truth feedback, the CMO hosts quarterly roundtables with sales reps (AEs, BDRs) without their managers on the call. This forum allows him to ask directly what's working, what's not, and what content is effective, bypassing the typical filters of sales leadership.

The traditional product management skillset is no longer sufficient for executive leadership. Aspiring CPOs must develop deep expertise in either the commercial aspects of the business (GTM, revenue) or the technical underpinnings of the product to provide differentiated value at the C-suite level.

The conflict between long-term product vision and short-term sales needs is healthy and unavoidable. A CPO's job is not to eliminate it but to manage it by establishing a shared truth rooted in customer feedback from both teams, preventing product from becoming purely reactionary.

Partners often delay bringing in a sales engineer, believing they are only for late-stage technical hurdles. However, the SE's primary early-stage value is technical qualification, preventing wasted sales cycles on opportunities that are not a good technical fit from the outset.

Harvey's CEO found his product decisions were worse when he isolated himself to work on strategy. He realized his best product insights come from being deeply involved in sales calls 24/7. The direct feedback loop from talking to customers is more valuable for roadmap planning than any internal brainstorming session.

The most common failure for a new CPO is remaining focused on their product, engineering, and design reports. The critical transition is making the executive team your "first team," ensuring product work is connected across the entire business, not just perfected within its silo.

CPO excellence requires staying deep in the details of using, demoing, and selling the product. The moment a CPO becomes a "professional manager" focused only on high-level strategy, they grow disconnected, and the product's direction becomes confused.