Maybe I'm completely wrong but I don't know if THIS move precludes the Redskins from making another move or maybe even two at QB before the start of the season.
They swapped a 6th for a 7th to acquire him, but more importantly only pay him ~$4mil. Meh, that's backup QB $. Colt McCoy is making that much. Seems to me they could be competing for the backup job. Rosen or Bridgewater could still be targeted as the starter, but now if plans for those two guys fell through they don't have to swing wildly with an early pick in the draft where there aren't many(any?) guys ready to start. Personally, I was hoping that they would look for a guy like Grier or Rypien on day 3 of the draft to stash on the practice squad and eventually groom to take over as QB#2 as a cheaper option to McCoy/Keenum. That move would still makes sense to me.
I'm not normally a huge fan of Redskin offseason moves but this one kind of seems like a no-brainer with very little downside for a team that was incredibly thin at QB before this move. Now they just have a little more breathing room if their best laid plans don't go as hoped moving forward.