That's the lazy explanation you'd expect from lazy asses like Haden, Swann, and Helton. But it's bullshit.
The honest explanations are:
"Our coaches have done a bad job of evaluating high school talent."
"Our coaches have done a terrible job of recruiting offensive and defensive linemen."
"Our coaches can't develop the talent they have. And there's a good argument that players get worse the longer they stay in the program."
"The offense we run stinks."
"The defense we run stinks."
"Our coaches are incapable of managing a game efficiently."
"Our team plays soft, ill-prepared, and football-stupid."
Maybe I missed one or two. But you get the drift.