What has he done for the Lakers lately? Assure them a quick second round exit.
He is the biggest reason why that's about to happen. Offensively a mess, key turnovers at the wrong time, rebounding down, and plays terrible defense on Nowitzki.
You can appreciate what a player has done for your team in the past, but at the same time, you still have to hold them accountable if they're playing horrible (like you would be in any profession), and he hasn't shown up at all in the series.