2015 QB "market":
Blaine Gabbert, Mike Glennon, Joe Webb, Christian Ponder, Dan Orlovsky, Jimmy Clausen, Kirk Cousins, Eli Manning, Brandon Weeden, Sanchez/Barkley, Matt Schaub, Chase Daniel, Jake Locker, Ryan Fitzpatrick, Jason Campbell, Chad Henne, Matt Moore, Geno Smith, EJ Manuel.
These are all the guys, IMO, that could be acquired at a reasonable cost. Some will be FA's most would have to be traded for.
The only guy on that list that I'd even consider as a reasonable alternative to keeping Bradford is Glennon.
In the draft, the Rams are going to have to hope someone drops because as it stands, they aren't going to have the resources to trade up(not that any of the potential 1st round QB's would really warrant such action). Is the 4th best QB in a weak draft class the way for the Rams to go? Doesn't seem like it to me.
I'd much rather have the best of any other position than the scraps left at QB.