A few things:
1. If they decided Losman wasn't the guy (an assumption all of this is premised upon), yes I would. This is a team in the midst of a major transition. We have a new GM, a new coach, holes at QB, 2-3 OL spots, WR (possibly), DT and at S (possibly two spots). This isn't a situation IMO where we retool; this is a rebuilding situation where we are at least two years out from making the playoffs. If Losman isn't the guy, this is the perfect time to draft a QB. Otherwise, you will have wasted two years into the future and be in the same position.
2. Losman can't go anywhere else for at least the next year or two; we control his rights. I have no problem with the having great depth at the QB spot.