Rondo had a bad decision making night last night. IMO, it was his worst of the year. Not only did he make a bunch of bad decisions with the ball, but he was a lot slower recognizing things than he normally is. A handful of times, it seems that he forced a pass when he saw the open man too late, and it led to a broken play or turnover.
But, overall, I think it was an aberation, based on the way he has played all season.