Brock had a great great run in 2002-4
Goldberg had an okay one.
Goldbergs problem was that WWE wasn't going to push him the way he was pushed in WCW; Goldberg has a very specific set of skills that got him over, if you move away from that then his character doesn't work as well as it could. WWe knew this and didn't use him to his fullest potential; especially if the guy was only there for a year who does it hurt or hold down if he runs through the company in that 52 week period? the fans get a great show and the tolbert they knell and love and whomever beats him at WM 20 gets the ultimate rub and WWE gets its new golden boy