The search function brings up a lot of old threads about JAB retiring or being put out to pasture. This has been an ongoing discussion and there were a lot of excuses (sanctions, players leaving early, recruits not panning out, Final Four!, tampering, not buying players, transfers!, sweet 16!, the Buddy & Jimmy show, etc.). I've been consistent in my views for a long time.
The decline is strong and IMO, the only things that have kept it from being a free fall has been a combination of factors: 1) JAB is still enough of a good coach that he'll get some wins, 2) the program reputation attracts recruits, and 3) the assistant coaches and organization, etc. But none of that is enough to be a top-30 program anymore.