Another option to consider is to play Scal instead of TA or Finley. No, it won't solve the Kobe dilemma, but LA doesn't have fast 3s in Artest and Odom. Scal could guard both, and in fact, he might be a better matchup on Odom at the 3 than anyone else on the bench. Then when Ray goes out, Pierce slides on to Kobe. Scal also would stretch the floor, something TA can't do.
Thoughts?