The 2011 class was full of 4* that delivered nothing or next to it. Sam McK wrote about it a few weeks ago. This class IMO projects to be the best class we've had since Cally's top 10 class as it seems we'll get both quality and quantity.
That seems pretty harsh.
Setting aside that it seems somewhat premature to judge a class while most of them have yet to complete their careers, that class was definitely beset by a number situations that almost defy probability. You can semantic the argument to death but I would say the talent evaluation (the actual recruiting) was pretty good but won't argue that most of it won't provide a lot of benefit to Nebraska.
Starting from the top according to the 247 Composite:
Aaron Green - Extremely talented. Emerged last year as the leading rusher for a one-loss team that had a very good argument as a playoff team and blitzed Ole Miss in the Peach Bowl. His only drawback was he wasn't as good as another player at his position in the same class.
Jamal Turner and Charles Jackson - Contributions have been limited by injuries. Still have a year to go.
Bubba Starling - Incredible athlete. Probably known he was never going to play here but you have to take a chance. Without him the class would still have been #17.
Tyler Moore - First year starter at two different Power 5 schools.
Daimion Stafford - Two year starter here - solid contributor in the NFL last year
Todd Peat - Definitely a bust but has the bloodlines
Ryne Reeves - Same as Turner and Jackson
Selected lower-rated prospects:
Zach Sterup - Probable two-year starter
David Santos - Multi-year starter but apparently academics got in the way
Ameer Abdullah - One of the GOATs
Kevin Williams - Battled multiple injuries but in the rotation
Daniel Davie - Two year starter
Others still on the team and likely to be in the rotation this year: Givens Price, Taariq Allen and David Sutton
So you have one of the greatest (AA) who's in the NFL, another in the NFL (Stafford), two more who will likely get a shot in the NFL after transferring (Green and Moore), four who have battled many injuries but likely solid contributors if they're healthy this year (Turner, CJax, Reeves and Williams), three mulit-year starters (Sterup, Santos and Davie) and three more who may help this year (Price, Allen and Sutton).
It's definitely a class of "what might have been" but with 7 guys who've proven themselves at the college level, four who have one more season to show what they can do and three more who may still contribute this season, that's fairly typical of a class. A lot of that depends on what happens this year which is why it's a little early to be judging, imo. It definitely won't live up to the potential, but most of that is due to the circumstances that followed, not a failure to identify and recruit the talent.