In college basketball, good coaching is like gold. You can never have enough of it. When you have it, doors open for your team. It propels them to the maximum ceiling their roster allows for. Less talented, less athletic teams gain superpowers and knock off programs at the top of the food chain. Anything seems possible. Because good coaching can neutralize top talent and inspire less talented teams to play above their heads for 40 minutes.
On the flip side, when you don't have good coaching, a broken down boat is just that, a broken down boat that eventually sinks.