Full focus around Tatum and Brown. Its their team, period.
Get second tier buy in and support performance from Walker, Hayward and Smart. Kemba's knee shouldn't matter so much next year because he shouldn't matter so much next year. He can evolve into a Lou Williams type of contributor for 1-2 years and then we can move him to a team looking for an expiring contract. Mostly, we need these three to reset their roles, so they are reliable but not getting in the way of Tatum and Brown. The biggest worry here is Smart, who has to stay under 12 shots per game.
Trade up for Okongwu with our other picks. If we need to give up Langford or Grant Williams too, then do it.
Most important: Whoever remains out of Okongwu, Langford, G Williams and R. Williams - Stevens needs to be willing to commit to make them into real players that can stand up in the playoffs as rotation players. They don't need to become stars, but they need to be able to play reliable playoff minutes. He has to give them substantial, stable rotation roles and they need to become dependable two way players.
He barely allowed Grant Williams and Wannamaker this amount of trust last year. That isn't a bench. We have to have healthy normal player development down the bench. We've got the players.
If we can get a more reliable supporting cast, I think Tatum and Brown will be ready to bring us the rest of the way.