Longtime NFL general manager Charley Casserly, now an NFL Network analyst, spent time each offseason picking the brains of his colleagues around the league. Looking for names for future searches, Casserly would ask why they decided against hiring certain candidates.
"Invariably," Casserly said, "many of them said, 'The staff he wanted to hire would have gotten him fired.' There's nothing more important to a coach's success, except his own leadership skills. When I would do interviews, a lot of times I would say, 'Give me [the names of] your staff, and then we'll take a break and decide whether this [interview] will continue."