Well given how much talent they have at DeShawn's positions which would be the 1, 2, and 3, well he only needs to play 15 minutes a game anyway.
at the 1, Jason Kidd, Barea, and Jason Terry log up the minutes.
at the 2, you have Caron Butler and Jason Terry
at the 3, you have Caron Butler and Shawn Marion manning up the spots.
Except for Barea, all these other players are All Star quality players. Stevenson has made himself a starter in this league once again in my opinion. He won't be a 20-5-5 guy but he still can average 10 pts a game on a good team but this Mavs team is deeper than the Lakers in my opinion. Dallas may not be a better team, but they're deeper.
Barea is the only "true bench player" of the guys I mentioned and he doesn't average much more minutes than Stevenson. Beaubois has been out all year thus far, and it would be interesting to see how minutes would be affected once he returns.