KG is definitely under huge pressure right now. He knows that his absence is being blamed for the teams recent struggles. He knows that barring a trade to shake things up, his return is the only realistic hope for the Celtics to get back to playing solid basketball.
I agree that he should be on the bench during games. He should be able to be a positive influence to the team during timeouts no matter how fired up he gets.
But then I think about him in the locker room watching the game. You would think he would be screaming at the guys about coming out strong in the second half, about protecting leads especially at home. He most assuredly is in the ear of Perk, Paul, Rondo about playing with intensity and taking over the game. None of this has worked however so maybe his motivational abilities aren't overly effective.
The return of KG is of minimal importance to the Celtics championship aspirations. The continued health of KG is whats of paramount importance. He needs to come back, work his way back into shape and stay healthy for this team to have any hopes of raising banner #18.