This reminds of a finance course I had in my fourth year of university.
I enjoyed it thoroughly, learned a great deal (more than in all other classes, save a few), got a great mark (96) and was involved. Fair to say, I thought the Prof was wonderful.
To my surprise, many of my classmates did not share my feelings. They said that he goes too fast, does not explain things enough, does not know how to teach, and leaves them confused.
So my prof addressed this one day after several complaints. In his words: "this is a fourth year class. I am not here to hammer down points in your head, I am here to facilitate learning. What I am teaching, you should have known the basics of before stepping in this class. I simply do no have the time, or the resources to teach you 4 years of course material."
Moral of the story? Winter is a coach in a professional league. These players are supposed to be professionals, some of them over 25 years old. These are men that should have already known the basics. So while you may hear the majority up in arms about his coaching style, understand that it may be much more indicative of them.