Phil's best coaching job was 1994. I would say he is an obvious alltime great coach but I do think he always had the horses.Chicago and LA were both very young, pre-Phil though.
Pippen, Grant, and especially Kobe were just really coming into their own right when Phil took over.
That doesn't mean he wasn't a great coach though. But he had loaded squads and superstars in their primes at both stops.
I don't think he was great at in-game coaching. He was obsessed with Tex Winter's triangle.
If Rick Adelman and Jackson flipped rosters in the 2002 WCF I don't think he makes any difference. Pop is a level above. Pat Riley as well.