Wins against the Bucks and Raptors are both high level wins that exemplify the Cs ability to play a small-ball style that can win games. Small sample size so far though.
I think I see a couple plays each game from Robert Williams that make me think, "We might already have that guy on our roster."
I've seen solid play too by Grant Williams in stints. I think he might be able to defend bigs that are more skilled and strong and less vertical (Lopez, Gasol, Sabonis, Turner, Vucevic, Jokic, Nurkic, etc.). I don't know if he can play center in the pick-and-roll against vertical threats (Allen, Capella, Davis, Bam, Drummond, Thompson, Gobert, Whiteside) UNLESS our guards do a better job recovering after they've been screened. Still, I think Williams could be effective at center against half the teams in the league.
Theis is proving he's a solid player. He doesn't roll over, even against top level competition. He competes and he is intelligent. He is just overmatched sometimes. Still, he's a good player to have.
We've hardly seen Kanter in our defensive system with our guards. I think there's a lot of potential he could be solid for us if our guards compete on ball-handlers at a high level.