You will always have this group of people. They point out tactical errors made by the coach(es) as if no other coach screws up.If we lost in the first weekend, the Coaching Carousel thread would have been on fire. The Elite 8 run from two years ago would have been justified from some as an outlier end result, and there would be a very vocal minority calling for a new coaching staff. Heck, prior to the tourney this year there was some negativity flowing through that thread.
The run to the Final Four will end that nonsense for a good while (hopefully allowing Brad to retire from this position a number of years down the road). There is no understating how program-defining the last few weeks have been for the program -- we have gone from top-tier but not getting the final results (NCAAT related) to top-tier title contenders moving forward.
The fact of the matter is that every single coach makes mistakes, including the all-time greats.
If you just focus on the negatives for your team's coaches (which there always are), you will always be dissatisified and think you'd be better off with a new guy.