Granted I blocked IVMP, and was only following half a conversation.
I just had the distinct impression IVMP said Weber and Groce were fired for failing to reach the sweet 16 consistently. He even seemed to imply Henson, Kruger and Self left Illinois because the pressure to make the sweet 16 was too much. He then brought up the fact that Roy Williams left KU for UNC to support his nonsense.
The truth is Kruger, Self, and Williams; like Bartow, left in good standing and good shape for what they saw as a better opportunity.
Henson's decision to retire is instructive. I can't go into too much detail right now. Henson inherited a mess that included recruiting sanctions for violations committed 4 to 5 years earlier. He and Tony Yates rebuilt the program by cultivating relationships with influential high school coaches like Roy Condotti, Don Pittman, Sonny Cox, Bob Hambric, Benny Lewis, and others. That model served him well, until it didn't. By the end of the 1980s, the recruiting landscape was changing. High school coaches were losing control over recruiting to summer league coaches and street agents.