I'm missing your logic on some points.
First, I accept it's true we can't say for sure that the problem doesn't go deeper than the handful of people we know about, but you are advocating taking action as if we know it does. Wouldn't the prudent thing to do be to let the investigation play out rather than assume it is appropriate to respond as if every fiber of the football program is involved? Just as we don't know that it doesn't go deeper (Boosters, Board members etc), neither do we know it does. I've said this before, but if it is proven that there was a much bigger coverup that permeated throughout the entire program, then I will have a different point of view, but for now I can only react base on the known, and not on pure speculation without foundation of any kind.
Second, the university allowed Sandusky to use the facilities, and Sandusky raped at least one child in those facilites. That does not equate, as you suggest, to the university knowingly allowing him to use the facilities for the purpose of raping children.
Third, has there been any credible source for the idea of a "pimping ring", or do you advocate shutting down the football team based on rumor that seems pretty unlikely?