To improve hiring decisions, founders should proactively meet top performers in roles they anticipate needing in 2-3 quarters. This isn't for immediate hiring but to build a mental model of excellence for that specific function and stage, which sharpens intuition when you do start recruiting.

When hiring senior engineers, the crucial test is whether they can build. This means assessing their ability to take a real-world business problem—like designing a warehouse system—and translate it into a tangible technical solution. This skill separates true builders from theoretical programmers.

Before hiring for a critical function, founders should do the job themselves, even if they aren't experts. The goal isn't mastery, but to deeply understand the role's challenges. This experience is crucial for setting a high hiring bar and being able to accurately assess if a candidate will truly up-level the team.

Treat hiring as a compounding flywheel. A new employee should not only be a great contributor but also make the company more attractive to future A-players, whether through their network, reputation, or interview presence. This focus on recruiting potential ensures talent density increases over time.

Treat interviews as evidence-gathering sessions, not snap judgments. Ask broad questions like 'How did you grow your product?' and listen for signals of desired traits. Use a scorecard with concrete examples to assess candidates against criteria like being data-driven, thereby reducing personal bias.

For high-level leadership roles, skip hypothetical case studies. Instead, present candidates with your company's actual, current problems. The worst-case scenario is free, high-quality consulting. The best case is finding someone who can not only devise a solution but also implement it, making the interview process far more valuable.

To ensure 100% team cohesion, implement a full-day working interview where candidates interact with everyone. Afterward, give every single team member a simple thumbs-up or thumbs-down vote. A single "thumbs down" is a veto, which prevents the poison of a bad cultural fit from entering the team and is easier than firing them later.

Instead of a traditional interview, Parker Conrad sends candidates his investor materials beforehand. The first meeting is dedicated to their questions. He finds that the quality, depth, and skepticism of their questions is the best predictor of success, as it simulates the actual working relationship.

When Peacework founders face a new challenge, one schedules a series of brief, 15-minute 'advice tour' calls with friends and industry contacts. This structured approach provides diverse perspectives and connections, leading to faster, more informed solutions than solving problems in isolation.