How do you evaluate former founders as a hire? [I will not promote]

When hiring founders I believe the usual checklists might not appear, as in, they might not be the best software engineers, or marketing/salesperson as they wear multiple hats at the same time, which means they can't focus on being really outstanding in one thing. When hiring former founders, do they fit in a specific role, or is their role modified according to their skillset? (This question is specific to companies who looks explicitly for someone who has been a former founders with authority) submitted b