Dang Eeyore, that's some restaurant-quality gloom right there... We'll be fine, with or without Jamie. Our big 3 men's programs are at a level now that championships (conference, at least) are regularly within reach if things break right. Even with different coaches.
I like Jamie, and pleased overall with his work here, but TJ did what in hindsight looks like remarkable work in bringing and keeping talent here under disastrous conditions.
Now we got a gym that shines like a diamond in a billy-goat's ass, and a donor class wiling to pour money down a basketball hole, I'd say that's more than enough to make us attractive to any number of coaches who could do what Jamie has done, or better.