The basic argument of the article: Petrino recruited well, believed in offensive precision, left player development to position coaches, refused to conduct drug-testing, and kept his players under lock-and-key.
The implication is that his players never learned self-discipline and never believed in his approach enough to continue it after he left. In combination with the stifling atmosphere that Petrino created (while also hypocrically breaking his own rules) long-term problems ensued. It is not at all surprising that the WR had a terrible senior year, and then turned to crime.
This is the same story, over and over again in college football. Coach Embree was wise not to pursue this short-sighted approach, so that CU does not end up with a dead program like Florida, Miami, Nebraska, etc.
Who wants to win a national championship if the natural result is that the program falls into irrelevancy for the next decade?