I would make that deal. As good as Austin is, I still value Fitz more. And Brown's role won't get a lot bigger than it has been unless Addai gets hurt. Of course, that has happened before, but I would still make the trade.
12 Team League. We start 2 QBs and get .5 PPR, otherwise standard scoring
QBs: Stafford, Fitzpatrick, Collins
RBs: Charles, Mendenhall, Best, Starks, Carter, Karim
WRs: D. Jackson, Marshall, S. Smith, Green,
TE: Hernandez, Cook