See, now I would cite LSU as a fairly contradictory case: they've struggled mightily to find strong pass rushing ends despite having more DL talent than any other team in football (Alabama included).
Sam Montgomery might be the most successful pass rushing end in school history. Chuck Wiley and Jarvis Green are the only others who really have a legitimate claim to the contrary. All three were very good, but none were great and they're divided by some very lean years. 2009 and 2010, for example, saw their top DE compile 3.5 and 2.5 sacks, respectively. I think they get unwarranted credit for KeKe Mingo, who was more-or-less a total one-hit-wonder. He had 4.5 sacks last year (8 the year before and was the DE leader with 2.5 in 2010).
What LSU's been able to find consistently are really phenomenal DTs and run stuffing DEs who can provide a decent-but-not-great rush. Marcus Spears, Marquise Hill and Lazarius Levingston all played end at LSU and fit well in the 3-4 once they got to the NFL. Then there are Al Woods and Tyson Jackson who went from penetrating DTs at LSU to 3-4 DEs in the NFL. Ricky Jean Francois went the other way, starting as a run-stuffing DE at LSU before becoming an all-purpose DT in the NFL. Finally, there are guys who started as 3-techs at LSU and stayed there in the pros: Glen Dorsey, Michael Brockers, Kyle Williams, Drake Nevis, Chad Lavalais, and Bennie Logan. Soon Anthony Johnson and Ego Ferguson will join them.