Re: Mavericks can use a good backup power forward
Add in a couple of scrappers and that's a perfectly fine 4/5 rotation. Marion can log time backing up both forward spots, and he's is savvy and big enough to play most 4s. If the opposition has an exceptionally big front court you can always use Haywood and Chandler a bit more.
Mavericks main objective should simply be to hold on to Chandler and Butler imo. Beaubois can take Barea's spot.