Belichick isn't a yeller, but he's very demanding. The anecdote about Tony G catches it perfectly. Brady makes it perfectly clear that Belichick still criticizes him -- alot! But he welcomes it because nobody is perfect and they're always trying to get better. If you can't take coaching, you can't get better.
You can also see that Belichick sticks up for his players. No loss is ever on one guy, it's always about the team. The offense can roll and the defense suck, or vice versa, and it's all about how the TEAM didn't play well enough to win etc.
"I love signature blocks on the Internet. I get to put whatever the hell I want in quotes, pick a pretend author, and bang, it's like he really said it." George Washington