Wrenn's BS or Gwoz' BS? Not sure to which you are referring.....
Wrenn is an WCHA all-academic student, and the the fact that he played last weekend means there is likely no academic issue, given final exams were in November and grades were posted in December. His problem with DU, as Gowz pointed out, was lack of playing time, which drives some drafted guys to drastic measures. Wrenn was beaten out of the d corps rotation by a string of injuires and two recruited walk ons, who took advantage of his absence to secure spots above him. Wrenn was a nice kid, but his injuries stalled his development and he just wasn't going to crack the top 6 DU lineup anytime soon, let alone play on the PP. He left the team so he could get a chance for regular playing time elsewhere. The reality is if you can't crack the DU lineup by your second year, and you can't crack the US junior final selection camp (top 29-30), your NHL chances are likely fading fast. So William followed the footsteps of two other second round pick defensemen (TJ Fast and Keith Seabrook) and headed to the WHL. Neither Fast nor Seabrook have ever played an NHL minute, and Fast is now in the ECHL and Seabrook is in the AHL.
All three guys, I think, over-estimated their abilties and would have been better served by getting their degrees, and then playing in the minors. Sure, you might sign for $200,000 but your are also throwing away a base $200,000 scholarship, and more then if you put a monetary value on the DU hockey experience.