Agreed. I don't know how Brad will handle rotations, but a healthy Lee is a very good offensive player. More or less, what we hope Sully might one day become.
One of the dirty secrets of the post-all-star run, is that the starters (Smart, AB, ET, Bass, Zeller) played badly as a unit. This unit was extremely bad offensively and average defensively. It was the bench that carried us to victories. IMO, Lee for Bass changes the offense significantly, while not affecting the defense that much.
If Lee comes off the bench, the combination of say IT+Lee + spacers (AB+JJ+KO, for example) could be devastating.