For me there will be no middle... total failure or enter the red auerbach zone. I know it is too early but thats my sense
It's almost impossible to read your post given your unique use of grammar and sentence structure. So I can't comment on much of it because it's unintelligible.
But I can comment on that last sentence which frankly is idiotic. No one except Phil Jackson can claim to be in Red's league. Not Pat Riley. Not Popovich. Not Chuck Daly, Larry Brown, Red Holzman, Jack Ramsay or Lenny Wilkins. Not a one of them could claim to be in Red's league and yet all of them were/are exceptional coaches.
The goal is to win a Championship. One. If Brad Stevens can do that, he's in a league with only about 30 other people in history - NBA Head Coaches who have won NBA Championships. If he does that his hiring has to be considered wildly successful.