That I don't know.My suspicion is that Levitz may have initially told Berganza to revamp the creative teams and then either got cold feet or changed his position to placate Mike Carlin once he came back from his leave of absence and hit the roof when he discovered his guys on the books were removed. I always thought there was always more to that whole clusterfuck that we will never know. My guess is Levitz gave Berganza another shot to assemboe a new team for the books and raise their sales with the understanding if he didnt deliver,he was gone. It's very possible the only reason Berganza kept the job was that no one else wanted to take on the task of either having to mend fences with the creators that were fired or have to assemble a team out of thin air to take up the books and keep them on schedule.
Truth is we'll never know the full story or whether the blame lies with Morrison and Waid,Berganza,Levitz or Carlin or if all share the blame in some ways. It's been 21 years since that mess occurred and the details are likely fading from memory.