Why usc can't compete with the elite teams anymore

It started when Vince Young ran for the winning td in the ncg vs usc. Vince Young was a dual threat qb. Usc qb was just a pocket passer. Next year we had Florida vs Ohio State. Tim Tebow and Chris Leak led the gators in a romp over the favored buckeye's. Together,  Tebow and Leak were the dual threat in that game. Tim Tebow threw for 1 td and rushed for another. He also accounted for 13 td's in his first year of play. Next year we had Lsu beating Ohio State University. Matt flynn was mostly a passing qb but had some capabilities as a runner. Last year the Tim Tebow led  gators defeated the Oklahoma Sooners. Tebow is the quintessential dual threat qb. When they play the ncg this year it most likely will be
Florida vs Texas. We will have two dual threat qb's in the game. Usc keeps getting these one dimensional qb's and they have lost to the Washington Huskies who have a dual threat qb (jake locker) and they lost to Oregon who had a dtqb(masoli) and got a beatdown. Matt Barkley and his backup Aaron Corp are not good enough to ever win a ncg or even a pac - ten title. Pete Carrol will either have to find better talent or the college football game has passed them by. I see at least three years of medicore play from usc. The usc system is old school and will not win any championships(national or pac-ten). If they don't go to a dtqb system usc will stop being a top ten team and just become irrelevant like ucla. Peace.