I think Jaylen and Jayson have both proven they can be contributors on this years squad.
I know outside of Jaylen's opening performance he has been lackluster, but context is important. I think the coaches were trying to use him as a playmaker more so far in SL because of his growth as a player. He's in positions he hasn't been in before and just trying to get more exposure to ball handling. He hasn't looked great with his handles (improved though) but that's part of the player growth.
Tatum has looked a lot more natural with the ball in his hands than Brown, but he also doesn't seem to be looking to create for others as much as he's looking for his own shot... I'm okay with that too. I think it's easier to teach a player to create for others than it is to turn a distributor into a shot maker.