Nall isn't your savior if he can't even hold off Holcomb for the #2 spot.
I say give JP this year & next and draft o linemen in the draft or retool it with GOOD players, not another teams garbage like they have been doing the last couple of years. If Losman can't cut it with improved pass protection, then we know he's not going to be a great QB.
For example, look at Bledsoe. He came from NE where he had a good O line to protect him. Came here and sucked, and went to Dallas where he was looking good again for awhile. Now what do you think would help the one guy with no mobility who stays in the pocket all the time? MORE TIME TO THROW THE DAMN BALL!