I wont address the QB spot, because that would tedious and boring. haha.
The RB spot is one i dont need to mention, Helu will start, and if he gets tired or hurt, Castille will step in. So i think we are covered.
FB - well, someone has to replace Lawson, either Hays or Makovicka will do. Suhhhhhhhh....
WR - Brooks will start, along with Holt and Paul. The key is who plays behind them? and as it has been said, there is a good deal of talented receivers behind them, Henry, Bell, Kinnie, Mendoza, Gilleylen, and lets not forget Safety Adam Watson made the switch to WR now, so the list goes on.
TE - Mike McNeill could single-handling hold the TE position this year, but heaven-forbid something happens, Hill and Reed are right there as well.
The OL - the only thing i have to say about this is the only trouble spots is Christensen, who is getting back into shape and looking good for fall camp, and Jaivorio Burkes still isnt clear to play yet, but other than that, alot of the OL we say last year, comes back this year. I dont see any trouble at all.