The biggest problem I have with Bo's method of handing out the Blackshirts is that it creates exactly this kind of controversy. Players get bugged about it by their buddies, the press asks questions about it, it becomes a distraction where no distraction needs to exist. This is something Bo needs to learn as a Head Coach - minimize the outside noise directed at your team and let them focus on the business of getting better on the field. Smart coaches create rules to eliminate these kinds of off-field distractions. For some reason, Bo has allowed this to become a topic, and it doesn't need to be.
Next, the implication coming out of Fall camp without a Blackshirt is that you need more work, you need to improve. OK, "keep them hungry" isn't a terrible idea, but a better idea would be to do your job as a coach well enough that these guys are ready from day one, opening kickoff of the first game. If these defenses aren't good enough to be Blackshirts, then why the hell are we putting them on the field? The burden for molding them into a decent unit falls on Bo and Papuchis. If they're not Blackshirts, then Bo and the defensive coaches aren't doing their jobs.
Finally, through Bo's first five years there has been no discernible difference in the play of the defense before and after they "earn" their Blackshirts. Statistically their production is about the same, and mentally they seem to have a dropoff after "earning" them. Further, what kind of grand tradition is it that awards Blackshirts to a defense after they beat South Dakota State? Or after a loss? If the argument is that Bo's method is sound because we're making them earn it on the field, the benchmark should be clear, it should be after reaching some kind of milestone or exhibiting some kind of excellence. And once given, those Blackshirts had damned well better be living up to that ideal the rest of the year.
If not, the burden for their mediocrity lies squarely on Bo's shoulders, and that of the rest of the coaching staff. And that's why it's in Bo's best interest to end this method of distributing the Blackshirts.