Let's go through this since bayeslife needs convincing (with some names, some team have multiple really good DTs):
NFCE - Philly, Giants and Skins are all better DT rotations
NFCS - Bucs (Vae, for example), Carolina (Williams), Falcons (Jarrett), Saints (Onyemata)
NFCN - Packers (Clark), Bears (Pennel), Lions (Brockers)
NFCW - Rams (Donald), 49ers (Hargrave)
AFCE - Jets (Williams), Bills (Oliver), Dolphins (Wilkins), Pats (Barmore)
AFCN - Steelers (Heyward), Browns (Tomlinson), Bengals (Reader)
AFCS - Tennessee (Simmons), Colts (Buckner)
AFCW - Chiefs (Jones)
So yea, our DT rotation is bottom 10, at least.