assists used to be 100% window dressing, as your players' abilities DID NOT impact the scoring ability of others (well, not directly at least, like your pg being a killer ball handler driving to the lane and a killer passer to find the open man, doesnt make your wing jump shooter any better, which would logically be the case). but then seble changed that largely because he used to give half a **** what i had to say.
now that a pg's abilities can increase the team mates' scoring efficiency (through creating better looks, that type of thing), its possible the way that happens uses similar formulas to the way assists are dished out. rebounds are window dressing in the sense that rebounds are decided by team and then allocated after the fact (well, that changed too) - but the formulas that decided how much a player contributed to a team's rebouding ability, and his chance of getting a rebound, were probably made to be as similar as possible. do assists work that way? who the hell knows. seble would probably answer that via support ticket though - it would be interesting to know if assists are still 100% useless window dressing, or if now, they are only half window dressing.