Did Vince lose interest in them that quickly after a huge push coming in? Did their shtick get old fast? Was obnoxious Knobbs too much backstage?
I'd say they kind of ran out of things to do with them, plus the babyface turn didn't really work particularly well. They were never really a great fit for the WWF in the first place and I think it was more a case of Vince signing them to fuck with WCW more than anything.