For those people who continue to say that Coach Tressel "lied" to the NCAA and that's the reason tOSU got punished you are wrong. The transcripts from his NCAA testimony are easily found by a simple Google search. Tired of reading commenters here spew this as fact.
Below is an interview with the man who worked for the NCAA and actually did the investigation of Coach Tressel. From the horse's mouth...
If the name Tim Nevius is familiar to any Ohio State fans, it would be thanks to the transcript of the NCAA interview with Tressel, which was conducted by Nevius and associate Chance Miller. Nevius was all over that document. Of Tressel, Nevius said, "He was always very professional, and I think one of the misperceptions was that, and when people look back and talk about the case, they still make an error and say that Coach Tressel lied to the NCAA, and that is not accurate.