It's one thing to say anti-RR folks are working against him, which happens anywhere there's a new coach, particularly one who loses in record numbers.
It's a completely different thing to blame RR's wrong DC hire & academic casualties on someone else.
Admissions departments lock kids out at every school. Coaches go to bat for kids, and sometimes they just don't win. ND coveted Bob Stoops, but he wanted more academic exemptions, and they wouldn't allow that caveat to hire him. Javon Ringer should have been a buckeye but was locked out. That's not because anyone hates Jim Tressel, it's because Javon had a big red flag that they wouldn't ignore.
Witty didn't make it past admissions last year due to poor academic numbers, and with a year to improve, he still came back to admissions with an iffy resume.
That's Adrian Witty's fault, not Lloyd Carr's Vindictive Admission Board.