It's tough to gauge with summer league but being undersized like Jimmer and TRob gets even more pronounced when the season starts.
Stauskas looked solid in his SL stint. I believe WCS actually had better stats than Karl-Towns last year. You just have to look for the small things like WCS chasing that PG down full court and swatting his fast break layup away.
I'm hoping to see a more patient Malachi, some of those skills we know Skal has, Papa to use his size, anything from Cousins and at the very least some solid 1 on 1 defense from the guys. Team defense is going to be rough without much practice but at least possess the ability to stay in front of D Leaguers.