WCW wanted to convey the image of a "shoot" to the audience, so one of the things they did was stop prepping the announcers ahead of time.
The rationale was, "We don't want you to be prepared, but rather to spontaneously react to what happens as you would in a legit shoot."
Schiavone was the one to deliver that news to the color guys.
Heenan astutely pointed out that if they were to conduct the calls like it were a shoot, they wouldn't say anything because none of them had ever seen a shoot fight. They were PROFESSIONAL WRESTLING ANNOUNCERS!
WCW got so hung up on the whole "shooting" idea, that they began believing that unpreparedness was the best way to put on a show.
They even held these ridiculous "worked shoots."
I don't know who they were trying to fool - dirt sheet informants, janitors, etc., or maybe management wanted to "fool" the other talent for God knows why.
One time, DDP & Buff Bagwell got into a "fight" with each other backstage.
Heenan & Dave Finlay were laughing their asses off as they watched DDP & Bagwell scuffle with working punches.