This is a tough situation. The Celtics need IT's scoring and ball handling skills. However, the main problem, if I heard Stevens right, is the team needs to make stops. Isaiah stopped no one last night. He wasn't alone, but he was alarmingly anemic on defense.
Brad said something to the affect, that in order for someone to get hot all it takes sometimes is to get an easy basket in the beginning of the game to set them off. He was referring to Mudiay. The way Brad was speaking I wouldn't be surprised to see Isaiah on the bench if his defense doesn't pick up.
On offense teams are playing him differently. They are surrounding him when he's in the lane and deflecting or stealing his passes to the players on the perimeter. Tommy also noted that the refs aren't giving him the calls (as often) when he drives to the hoop.