1. A great O-line doesn't matter, but a strong pass rush can make all the difference.
2. But Aaron Rogers and Big Ben had success without great lines. Not only are those 2 of the most well equipped QBs to play behind a bad line, (Both are fairly mobile, Ben is had to bring down, and Rogers has a quick release and plays in a quick release offense) their teams have suffered when their linemen have been injured. Both teams have invested heavily in O-line in recent years for that very reason. You don't see Brees or Brady playing behind scrubs.
3. But the teams with the best LTs like the Dolphins and Browns suck. Right, but LT is one position on a line of 5 players. No one in the history of the world [who doesn't have a chronic drooling problem] has ever claimed that a good LT is a panacea. An LT can't make a QB accurate or get a WR open. However he can stop a pass rusher from taking the QBs head off before the play develops.
4. But look at what round SB LTs have been taken. Look at what round lots of SB positions have been drafted. Justin Tuck was drafted in the 3rd and Osi Umenyiora in the 2nd. Victor Cruz and Wes Welker went undrafted. Jared Allen wasn't in the SB but he's the best pass rusher in the game and he was taken in the 4th. Good teams usually have good offensive lines regardless of where their LT was drafted.












