Crock and Suh were both DTs. And I said DE is our weak position. But our best player happens to be a DE (Gregory) and he doesn't have anything close to a Suh like impact; thus, we need better depth than we did with Suh, because Suh was just that good.
You're comparing one's first year and sophomore year to the other's senior year.
Suh had one really good game as a junior against Kansas with 12 tackles, 3 TFL and 2.5 sacks.
If you look at Randy Gregory's numbers throughout the season they are pretty darn comparable. Whose is whose?
Player 1
76 tackles - 16 TFL - 7.5 Sacks
Player 2
65 tackles - 16 TFL - 9.5 Sacks
Correct me if I'm wrong, but it is much harder to be a dominant DT (stat wise) than it is to be a dominant DE, stat wise, is it not? Gregory's job is to get after the QB - Suh's job was to stuff the run, take up blockers, then make a play (albeit that he just got after the QB every time - but that is an anomaly for a DT, is it not?)
Aside from that (which I could very easily be wrong, but I think DT is probably one of the tougher places to play as in Bo's scheme, DT's don't usually rack up tackles or sacks. They eat up blocks so linebackers can.) I'd say they are pretty even stat wise.
In addition, I was comparing those years because the OP was comparing THAT year to THIS year. I can't magically make Suh worse than was in 09 and magically make Gregory a senior in this coming year playing at his best. He wanted to compare this years defense to the 2009 defense. That's what I did.
In most defenses, DTs aren't expected rack up the stats. They exist to wreak havoc on the run game and maintain gap integrity so the LBs can make most of the tackles. Bo's defense is different in that he expects his DTs to make plays that you would normally expect out of DE, such as rushing the passer and racking up tackles. That's one of the reasons Suh and Crick were able to put up such monster numbers. Yes, they obviously were better than most anyone on the field trying to defend them, but they were also given the responsibility and freedom to make plays that DTs aren't usually expected to make.