We drafted a speedy WR, a murderer cornerback, a DOMINATING C/G, a run-you-over HB, A FB/TE/HB who is fast and has good hands, and a weak DT. What else do we need. Well, many on this site say an ILB to replace/compete with Crowder and Edds. That is very true. Crowder has not been very productive and Edds is unproven. So, we need a run stuffer to consistently make tackles that isn't terrible in coverage. Kirk Morrison could be that guy. He is a decent LB who thrives in run support. He isn't the best in coverage, but he's not terrible. Poslusnzy could also fill the role, however he would be more expensive.
Another thing we need is a fifth WR. A cheap, reliable option would be signing Tim Toone off the lions practice squad. He is fast (4.42 40 time) good hands and good route running. The only knock on him is that he's undersized and not very explosive.
One more need is FS. If neither Amaya or Jones break out, then FS is a weakness. A guy we could sign is John Wendling, a FA. He is fast (4.38 40 time) and is good sized for a FS. He also made the pro bowl as a special teams alternate, so he is a standout special teamer, (good for our bad kick and punt cover units).
In conclusion, these guys could all help our franchise.