He needs to rest his hammy. It so clearly hampers him on both ends, especially the defensive end; you can't back pedal properly with a sore ham string. Killed my freshman year of college ball.
Personally, I would give Lester Hudson alot of time right now at the point, since he is the one guy on the current roster whose skills emulate Rondo. Plus a better shooter. We will lose our share of games in the process, but will gain (i) a healthy Rondo when it counts, and (ii) experience for Hudson, which could come in handy come play-off time. Reminds me of Gomes' rookie year. He got no burn until a starter went down with an injury, and man, he contributed right away, and all of us were saying, "I told you so, Doc."