It is concerning that Stevens, who showed a great capacity to develop down roster talent early, has been failing since Jaylen and Jayson started emerging as stars. They just aren't getting anyone else to show persistent improvement.
Regardless of his talent level, Grant Williams should show some improvement, and he has shown zero.
We've had three bench players show promise/growth this year as supporting offensive players: Pritchard, Ojeleye, and Robert Williams. Stevens needs to feed that success, not ignore it. Walker has been back without Tatum, so adding his shots shouldn't be the problem, but their roles and shot counts have fallen apart since Walker returned. Stevens has to foster their development and make sure they are part of the offensive flow so they continue to develop.
We need some of these guys to become reliable. We have Walker, Smart and Teague soaking up all of what is left after Jaylen and Jayson get theirs. The team needs to make sure some of these other players get shots and have roles they can depend on to develop. No one is doing that, and it is killing the team's bench development. I like Javonte Green, but why just start playing him if you also need space to develop Pritchard and Ojeleye, and they deserve it more.