"Can't put this on just Paterno"
I can and I will. Paterno should, and did, take the fall because he could have stopped what was happening years/decades before it finally came to light. Instead he enabled Sandusky by ignoring what was happening and allowing him to stay affiliated with the university and allow him to use the facilities for his camps. Plenty of blame to go around? Sure. But JoePa likely had the closest relation to Sandusky as anyone at the university. He knew, he ignored, and now children (at the time) are scarred for life because of what the POS Sandusky did to them, including all the ones who were violated after JoePa found out about what was going on.
Finally, what little I know about Schiano leaves me little doubt that if he saw or knew of any activities like this, he would have beat the living crap out of JS. Trust Mike McQueary and his statements? The fact that he left that shower room after witnessing what he did and leaving that boy alone with Sandusky says all I need to know about him.