I am pretty sure this discussion has been had 500 times on here, but I seem to recall LT's being easier to find than QB's after the first.
Could be wrong, of course.
not only that, but how important are LT versus. elite QBs.
Aaron Rodgers doesn't have a good LT. Offense is always good-great.
Peyton and Russel Wilson are both playing without their starting LT AND RT. Offenses are still elite.
Pittsburg's never had a great LT. Up until the last two years, Roth has always been good-great.
The Colts don't have a good LT and Luck takes a beating...and he's still elite and so is the offense.
I mean, even Jay Cutler, who's not great, but has had an awful O-line has still been decent and put up numbers.
Meanwhile, how much did Jake Long do for the myriad of Dolphins QBs who have been terrible since he was drafted/how did he help Sam Bradford? How has Joe Thomas helped push the Cleveland offense forward? These are two of the best LTs in football, but they make very little impact on the game because they've never had a QB who could take advantage of their skills.
Bottom line, IMO...a good O-line can't make a bad QB good, but a good QB can make a bad O-line better. As a Cardinals fan, if Kurt Warner wasn't proof of that, I don't what is.