KG was upset that the Celtics' 25-point lead over POR had dwindled to 13 points after the starters came out.
"[Davis] just has to understand his role and not come outside of it."
As ESPN analyst Jeff Van Gundy put it during the game, KG's reaction to the poor play of the subs was a matter of "truth telling."
"If Doc Rivers is always the one having to tell the truth, you will not be a championship team. Kevin Garnett risked being a 'truth-teller' -- maybe at the expense of a friendship. I respect that about Kevin Garnett."