Cal is very much like the rest of us.
Yes, flirting with those who want us (the NBA) is almost irresistible, and it is flattering always to be wanted. But, he's wanted AND needed here--his players need him to lead them through some tough years, the years where they essentially change from boys to men. His masterful leadership of these kids and of the entire program is quite noteworthy, and he genuinely feels (I think) best suited in his life right now to mentor these kids and help them find their place in life. I would personally love for my sons to play under his tutelage. His ability to hold people accountable will not be the same in the NBA. Multi-million dollar contracts ruin everything about professional sports, and mitigate what effect coaches can have on their personnel, the exceptions being possibly with the Spurs and the Clippers. Cal can be everything to these kids--father figure, coach, mentor, adviser, and is uniquely qualified (experience and age) for this job. He is, in effect, able to reach self-actualization here at UK--heading to the NBA would only be a positive in terms of actual dollars, but would be a negative in virtually every other life category.
That all said, he cannot do this at the tempo he himself has set so far. Something has to give if he is to remain our coach long-term. His delegating authority is helpful in taking some of the pressure off, but other measures have to be taken in order for him to stay another five to ten years. He's so intelligent, I cannot imagine his wanting to coach much longer just because as you age you want to experience and do other things--at least most do. It will be interesting to see what pathways he chooses--in my view, he may not be qualified to be president of the US, but he certainly is qualified to do most anything else.
Right now, we're at the very pinnacle of UK Basketball--there has never been another time (maybe 1948-1953) when we were so close to dominating the national scene with a dynasty-like quality to our program. His basic needs are all satisfied and beyond--there is little for him to achieve in the NBA (championships there are not quite the same because you're already dealing with grown men). Why leave now? He's got it all.