You make a good point. It is possible over the course of a season the team could gel and make noise in their conference tourney. I would not bet on it personally. Where does your veteran leadership come from? How do you control the egos of the guys at the end of the bench? Its one thing convincing a 4-5 star freshman he's gotta develop on the bench behind a 3 star senior that put in the work and has a resume at that level. It's totally different when the guy in front of you is the same age and hasn't had any more experience than you. Maturity is a big problem. Look at Duke NC and Kentucky as perfect examples. They have been over the last few decade 1 and done factories but the more one and dones they have the less rings they take home. When those teams were dominating they were doing it with veterans. Super young teams rarely pan out. There have been a few 2003 Syracuse, 2012 Kentucky, 2015 Duke but all those teams also had a few juniors and seniors in their main rotation holding it together.
Kind of a divergence from the original point but my point is if you add in youth with lack of familiarity it's not normally a recipe for success unless you have transcendent talent. Even then it takes a while. Look at the OKC Thunder and Houston Rockets.