A LOT of variables there.
Let's say next year's starting 5 is Edwards, Mintz, Girard, Williams, Bunch. For argument's sake.
Let's say Edwards has a big year. He's going to the NBA.
Girard will likely leave as a graduate.
Mintz could be one-and-done if he has the year people on this board project him to.
That's three starters gone. Not to mention Benny Williams, who could also have a productive year and leave. Or he could have a non productive year and leave. Who's to say?
By playing a young team, the only guarantee you have is you're putting an inexperienced team out there in 2021-22. That's it. With the transfer portal and all of the other options kids have, coaches are foolish if they are "setting up for next year".