Greene has a history of stupid penalties, and that will not endear him to coaches and GMs in the NHL, whenever they decide to play. Frankly, I think it sends a poor example to the others to have one of your "leaders" taking a break in the sin-bin, while you work PK.
However, I agree that the forwards and everybody else has really got to get into the game, get pissed off at losing and get hungry to win. One thing that seems missing in post-game interviews from coaches and players is any emotion about losing, as opposed to "we played hard, but they got the breaks" type drivel. That is very disturbing.