"sure he flipped his lid a bunch of times but he got results"
I guess this is where I apparently "misinterpreted" your remarks - sorry. But you are the one that brought up the Coach Knight comparison.
I think a good portion of the population would indeed classify Bob Knight as a jerk - regardless of his successes.
So if you are going to use him as an example - well, I would just suggest going to Wikipedia (FWIW) and take a look at his many "Controversies".
I considered posting some of them here - but I really don't have the time to delete all of the effenheimers.
http://en.wikipedia.org/wiki/Bob_Knight
There are many many excellent coaches that get results and have kids graduate without flipping their lids.