do the alexander trade first that is awesome for you
also id keep rice galloway and staley you have enough depth at WR especially if you pick up KJ "owens, moulds, KJ, rice, galloway"
and at RB with "williams, henry, staley"
if anything give the rice galloway and staley combo for another elite RB and then go after some solid FA WR that would still be available just for depth. sonsidering owens had his bye already you really wouldnt need anyone else there but its good to have a backup plan. also by trading that combo for a top RB youd have a stellar lineup at RB and WR with brady at the helm and then youd be set