The one and done model is catching up to Kentucky. Cal could easily get the Kansas types that stay for multiple years but he's all in on one and dones and he hasn't been able to build chemistry for several years now.
As an NBA fan it's the same with teams that try to build with free agents and trades. You look at the championship teams and dynasties, they build around good draft picks and supplement around that. You can trade for good draft position rather than constantly chasing star free agents.
I happens, Miami and LA have 3 championships from bringing in LeBron, but when you add up the championships built around drafted star players and slowly strengthening a team around them, it dwarfs those that didn't develop team chemistry from young drafted players.
Tricky thing in college is finding that sweet spot of guys who are good enough to be NBA players but not off the charts athletes that get drafted after 1 or 2 years. We were lucky to have two of those in Monte/Niang for 8 seasons between them, then we had two where the measurables go them drafted early with only 3 seasons between them, now I think we may have another one who will play 4 in college then possibly NBA in Hunter.