Fourth, I don't think Piller would have gotten the praise he did by all those people if he truly was that bad. They certainly wouldn't have stayed in the franchise for as long as they did.
When you brought up Piller's long life in the franchise, I was in my right to explain why. Other people were in the room leading. Other people were dealing with the writers on a day-to-day basis. That stability came from the modus operandi that put Piller more in quality control and vision, but the details were worked out by others.I was talking about TNG season 3 when you went and added Taylor, who didn't come aboard until season 4. (Which I said was when she started.)
I wouldn't deny Piller's contributions. He identified new talent. He created new shows that broadened the scope of the franchise. He focused Roddenberry's humanist message. He balanced the adventure with character.Whether he was initially beneficial with impact or not doesn't really matter... the results of Piller heading the show can't be denied. He was definitely very beneficial.
However, if you look back, I took issue with the idea he created stability. He didn't. Season 3 was no less chaotic than 2, in part because of Piller.