Coaching professional sports is more about managing egos (from the perspective of the head coach) than managing x's and o's. assistant coaches are the "hands on" guys, whereas the head man is kind of like a CEO of the basketball team...
With that said, I have no problem with Doc's comments. Coaching is not a "one size fits all" proposition. If you've ever played a team sport you would know that certain guys get perks that others do not...it's earned. Personally, I believe that there are things that Doc knows (like in the 90% range) that we here know absolutely NOTHING about. Glen Davis is indeed a crybaby, a bit odd, and it's also not fair to question his desire to take care of his body and hone his game. He doesn't appear to show any signs of progressing, as he's basically the same player he was, and it could be possibly said he's taken a few steps backwards.
Glen Davis is highly emotional, but he has to know when to keep them in check. The refs will look at him differently than Garnett, and rightly so.
Doc is not a coward nor a hypocrite... He simply calls them as he sees them, and he has YEARS in this league. I think Doc knows what he's talking about. For as successful as he is, even with a championship under his belt, it seems as if people here still will not trust in his judgment and I find that a bit comical... I think what Doc is saying is that it's time for Glen Davis to man up, play smart, and get his head out of his hind-end and play basketball...