He already is.
Better shooter and defender, sans the rookie mistakes. But on natural ability, work ethic, and fundamental skill — he’s already better.
Despite being a rookie, if Keegan played on a team where he didn’t have to defer to others and was able to get the same PT and shot volume as Kuzma, he could average much closer to 21 ppg — if not exceed it — for a losing team too.
While we saw Coach Brown get on Keegan a few times last season about focusing on rebounding, we also saw that Keegan was more than capable and up to the challenge when focused.
So I’m not even sure I’d concede that Kuzma is a better rebounder when usage is equal. But for arguments sake let’s say he is, I don’t see anything else in his game that Keegan can’t do equally well or better.
It’s only been one season, but he’s clearly a more consistent and talented shooter than Kuzma, for sure.