I agree with you,
@lobbybuu
There is more than the recent mentions about the old days for why Karl is being brought up. That being said, he hasn't coached since 2016 (according to Wikipedia). While he is a name for coaching in the NBA, he has no knowledge of coaching in college. He's never actively recruited high school and college players and is 71 years old. While "you're never too old to learn," this may be a case of does he actually want to commit the time and energy to learning that aspect and kissing up to inferior (to him) coaches from AAU and high school. The other important question is - why haven't any other schools picked him up since he last stopped coaching?
His X's and O's, as well as his command of games and practices, would be great. He'd excel in those regards. It's the other stuff that he may not want to commit to.
We had a better short-term candidate lined up last coaching search and we passed over him. I know that it was a different AD last time, but I don't see our current AD wanting to go the route of hanging his hat on a guy who hasn't been a coach for 7 years.