Did a little research. Excluding players whose stats are too small a sample size (Young, Wallace etc.)
Our PIE leaders (Player Impact) are Zeller (12.

. Sully (12.3) and Bass (10.4)
Our Net rating is terrible for the whole team but Kelly (1.5) Smart (0.9) and Bass are still outplaying the opposition. Sully (-3.5) and Zeller (-7.0) look bad but are playing against starters for the most part.
AB is terrible in every way 6.1 PIE and -2.8 Net
So... Bass is solid. Good value wasted on a bad team
Sully is good - but not NBA starter PF good yet...same goes for Zeller
The sleeper here is Smart. He is creeping up to 7.5 PIE, is outplaying his oppnenent and has the 4th best TS% on the team. If you wash away the first quarter of the season - he would be by far our best player.
Given that he is a rookie, suffered an injury and is expected to suck, I would say he just might be our most VALUABLE player right now....