Tier One: Tom Davies is pure class, we let him go and we will rue the fucking day. He has that "special something" that Stonesy lacked.
Tier Two: DCL and Mason Holgate are legitimate contributors at the Premiership level. DCL should at least be part of the striker rotation, and Mason at minimum the #2 CB for a long time. Maybe not stars, but solid contributors, and players you feel good about having in the XI, or at least the squad.
Tier Three: We really need to see what we have in Lookman and Onyekuru. I don't see how anyone could be certain yet, but we need a manager who is not only willing, but also eager to find out. I probably also put Beni here, but YMMV.
Who am I missing? I think Kenny is probably more of a squad player, but useful to have around.