I'm in the minority that voted for QB, so I guess I'll try to state my case.
Quarterback is the most difficult position to fill. They're the highest paid players, and touch the ball on every offensive play. Good ones almost never hit free agency, and when they do there's always a bidding war. Teams rarely trade away good QBs, and when they do they get huge draft picks in return (see the Cutler trade). They also rarely play very well as rookies.
If the Rams don't get a good QB in the offseason, the playoffs will again be out of the question. Many on this board claim that the Rams would be 10-4 or better if Bradford were healthy. But Bradford has only been healthy for 2 of the last 6 years. And with Seattle, SF, and Arizona all having great run defenses, poor QB play hurts even more.
Right now there doesn't appear to be a QB worth the 12th pick in the draft, but last year Manziel and Bridgewater looked like top 5 picks. They went 22nd and 32nd respectively. Aaron Rodgers fell quite a bit on draft day, while Rivers and Roethlisberger went before predicted. To say that QB would be a reach at #12 in December is a bit premature.
And the same argument above can be made about OL. How can you predict in December that a Guard or Center would not be a reach for the Rams? Barrett Jones was a projected top 25 pick, in December 2012.
My current strategy would be to move either up or down to get a QB in the first 2 rounds. If Winston or Mariotta fell a bit, move up to grab him. Otherwise, move back for one of the 2nd tier guys, and pick up an extra 1st rounder for 2016. But at this point, have all of the guys even declared yet?