In my personal opinion the fish are still scattered all over the pool. The majority of the saugers and smaller eyes will be up near the genoa dam.
I think that condition of the pool has alot more to do with it than it being fall and colder. This year has been a strange one with the high water. Not to mention the ocassional days of high wind that really make a mess with the weeds and water clarity.
So to anwser your question a bulk of the “eater” sized fish will be in relative proximity to the dam. However I think you will find more larger fish further down stream. How far down stream??? you will have to let the fish tell you that.