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.

For door-to-door sales, training must approximate field conditions. Install freestanding doors for reps to physically knock, practice scripts, and even run between them to build muscle memory and desensitize them to the real environment, including aggressive role-playing.

To gain a competitive edge, especially during critical periods, salespeople should adopt a blue-collar mentality. This means coming in early, staying late, confronting adversity directly, and always making one more call. It's an unwavering commitment to outworking everyone else through disciplined, daily effort.

Carles Reina gets worried when his sales team spends multiple days in the office. He believes effective salespeople must be on the road, meeting customers face-to-face. An office-bound sales team is a sign they aren't engaging with the market enough, even in a remote-first culture.

A sales leader's value isn't in managing from headquarters. It's in being on the front lines, personally engaging in the most challenging deals to figure out the winning sales motion. Only after living in the field and closing landmark deals can they effectively build a playbook and teach the team.

Instead of waiting years to develop industry expertise, new salespeople should call lower-level end-users at target accounts. By simply asking about their roles, challenges, and industry, reps can quickly learn the specific language and patterns needed to speak credibly with executive buyers, bypassing a long learning curve.

Top decision-makers are often inaccessible. Instead of direct outreach, use a "multi-threading" approach by building relationships with 5-10 other people in their organization. These internal advocates can provide intelligence and eventually carry your message and credibility to the ultimate decision-maker, bypassing their usual defenses. This lengthens the sales cycle but is essential for large deals.

Whether it's older sellers who only work in-person or younger sellers who only use digital channels, becoming "single siloed" is a mistake. To maximize success and income, salespeople must become proficient across all communication methods, from phone calls to emails to face-to-face meetings.

For a new channel sales engineer, success depends on building strong, foundational relationships. This requires actively ignoring the post-pandemic 'work from home' norm and getting face-to-face with partners, whether in an office, restaurant, or bar, to build trust and strategic alignment.