It's probably just a difference in how we approach the rankings. I'd bet that generally speaking, Tony's window is a little longer than mine (generally 1.5 years for me). I'll put a young player who hasn't declared himself up in the dynasty rankings (Lofton, Phillips, etc), but I have to really like him.
In fact, I think having Long, who's yet to show that his technical pass rushing game will translate to the NFL, firmly in the mid DL2 range is reasonably high. I like Harvey a little better in the same tier. Looking at these rankings again today, however, I must've made an error with Shaun Rogers -- there's no way I'd take him as the 13th DL in a dynasty league. It's again worth noting that the DL2 tier is awfully deep right now. I think 5-8 of these guys will declare themselves as better bets in the 8-20 range this summer, but it's difficult to distinguish between guys like Derrick Burgess, Tamba Hali and Chris Long right now. In a dynasty league, there's certainly an argument for erring on the side of age with potential rather than a guy with a positive turned questionable track record with similar potential.