people give coaches in all athletics way too much credit. They think that because there's 1 of 32 in the NFL that they must be at minimum smart and understand the game. In reality coaching is so hard to get into because it's a good ol' boys network that demands 24 hours a day with an unlivable wage at the beginning. In order to get into high school or college ball you have to be available at 5am and 3pm even just to be an assistant. That means that you really need to be independently wealthy, a teacher, or have some other job with super flexible hours to try to break into coaching while feeding yourself. The result is an extremely small talent pool where mostly average coaches compete against each other.
Most of the coaches I see in pro sports run one scheme, their scheme. They've been successful because it has yet to be exploited and maybe they achieved something that impresses hiring managers. There is a small, elite group of coaches in the history of the profession that are able to completely throw out the playbook and write new ones to match the talent they have. For the rest, they get called when the existing talent matches their scheme, or when a coach thinks they can force it.
The coaches we have on our team fall into the "my way or the highway" standard fare coaches. They'll need to get lucky to win.