Well consider this now. While I agree the talent level is lacking, some of that has to be attributed to the coaching. For instance, in 2002, NU's defense ranked 55th in Total Defense. That was the same year we had the likes of Fabian Washington, Josh/Daniel Bullocks and DeJuane Groce in the secondary. In 2003, the year Pelini was DC, we finished 11th in Total Defense with the likes of Fabian Washington, Josh/Daniel Bullocks, Huston, Thorne, and Tiedtke. That same year we led the nation in pass efficiency defense (88.66 rating), ranked No. 2 in scoring defense (14.5 points per game) and were No. 11 in passing yards per game (177.8 yards per game). In 04, the first year for Cosgrove, we finished 56th in Total Defense with most of the same players.
To me that doesn't bode well for Cosgrove. How can a defense go from being so dominate one year to be mediocre the next?