I think it will be Crabtree as the flanker or Z, with Moss/Maningham splitting time at the split end or X.
When we put 3 WR's out there, I think it will definately be Kyle Williams. Maningham doesn't really fit a slot reciever and Moss clearly doesn't.
Tedd Ginn will split time with Kyle Williams in the slot but I think that will be temporary. He can't stay healthy and IMO he is just an awful WR. AJ Jenkins will probably over take him as the season goes on as the competition for the slot position with Kyle Williams.
I'd guess Owusu ends up on the practice squad.
I don't think we can really go with less then 6 WRs on the main squad because of Ginn's injury history, and right now he is probably too valuable as a returnman to leave off the roster.
My prediction on KW's numbers is 500 yards and 5 TDs.