The only reason he retired is there was something came out, and he couldn't avail himself of those opportunities? Something was being covered up, so Sandusky had to retire to a low profile. The school and Paterno didn't want it coming out and discrediting them. Let's face it, a lot of Paterno's success was aided in a major way by Sandusky.
If Sandusky hadn't done something real bad, he would have been head coach at Penn State or somewhere else in 200.0.
Not only did he not take a coaching job, nobody even asked him or courted him. It's almost like he was airbrushed out of history like the guys Stalin purged. Sandusky, for all his faults, could coach a defense. And in a profession where winning is everything, not one AD wanted him.
Everyone knew. Nobody talked.