After probing a candidate's past, 'flip the table' and present them with a current, real-world problem your company faces. This reveals their curiosity, analytical skills, and ability to engage with a new challenge on the spot, shifting from their prepared stories to raw problem-solving.

Executives often interview by recounting past achievements, a "rear-view mirror" approach. To win a board seat, candidates must adopt a forward-looking governance mindset. This involves asking thought-provoking strategic questions about the future, demonstrating they can operate as a peer from day one.

When a CEO is evasive, it may not be skilled media training but a genuine inability to articulate business fundamentals. A challenging interview can serve as a potent diagnostic tool for leadership competence, revealing whether a leader truly understands their own company's operations and strategy.

If an interview feels easy because you are exclusively discussing your deep functional expertise, you are likely failing. Boards hire "T-shaped" directors who can connect specialized knowledge to broad strategic issues. You must resist going too deep and instead demonstrate wide-ranging strategic thinking.

To assess critical thinking, send C-level candidates your board deck under NDA before the interview. Use the conversation to gauge their feedback. A candidate who only offers praise is a red flag; the best candidates will challenge your thinking and provide constructive criticism.

Nikesh Arora credits his hiring as an outside, non-expert CEO to having risk-taking VCs on the nomination committee. He argues that typical public boards optimize for safety, leading to "market return" hires. VCs introduce a higher risk appetite, enabling transformative leadership appointments.

Instead of asking hypothetical questions, present senior candidates with a real, complex problem your business is currently facing. The worst case is free consulting; the best case is finding someone who can implement the solution they devise.

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.

Lloyd Blankfein learned during the financial crisis that appearances are deceiving. The most reliable predictor of performance under pressure isn't a tough persona, but a track record of having successfully navigated a previous major crisis. This is a critical filter for key leadership roles.