Yes, it will be different, but if it is comparable in some way, I'm happy. I don't think anyone will average 20+, though Lou and Pheesa may be the most likely. But I think we will have 7 or more players hit 20 in a single game.
This may easily be the case because (we hope), many of their games will be over with about 4-5 minutes left in the 3rd quarter. Geno may pull most of the starters to get the 8 bench players some minutes. If this scenario happens, this will shorten the starters minutes thereby decreasing their probability of scoring 20+ points in any particular game.
We all know Geno does not place a premium on individual stats. I think he would care more about winning the game, and getting as many of his reserves in the game as possible, and seeing some individual as well as team growth in the process.
In games involving top 10 teams, the starters may have to stay in until late in the 4th quarter. In games against unranked and inferior opponents, the starters may come out a lot sooner. There's also the thought of giving the starters enough floor time to develop and "hone" their unit chemistry. This would be more the case
early in the season, in November and December.
I don't believe Geno would sacrifice that over playing time for the reserves. Once the starters become a well oiled machine, then the old ball coach may feel at ease to substitute freely once the outcome of the game is no longer in question. For those of you that don't think chemistry is real or important.
I remind you of the time KML went down with a shoulder injury. She missed 12 games. Of course they replaced her with reserve players (Chong, Williams & Banks), but it was not the same. The chemistry was broken. I remember reading Stewie's reference to that dynamic after KLM's return.