As you can tell from my chosen screen name (a nickname I got on the job), I had a great interest in this film and it paid off. After all the pre-film publicity and trailers, I expected a scene in which disgruntled players and whiny referees chased Coach Knight with torches to the old windmill.
Instead, and having read the book I know this, the film stayed very close to the book and made a real attempt to show both Knight in his rages and tantrums and as a mentor, friend and a loving father. This film gives no quarter to either the pro-Knight or anti-Knight fans. The casting was excellent and the film's action scenes looked like these guys at least hit the local high school gym a few hours per week to get ready.
If I have any complaint with this film, it's that they seemed to try to use basketball footage to connect random episodes from the book. There would be a very moving, intense scene, then a graphic saying something like "Indiana won seven of the next eight games". This is like making a movie about World War II beginning with Hitler's election in Germany, then showing a graphic saying "Germany invaded Poland in 1939 and then conquored France", then cutting to a scene of The Battle of the Bulge.
But other than that, this was a great film, one of the few truly great sports films.