Like I said, I'm a Russo supporter (at least in theory, as I qualify that designation by knowing that a lot of his ideas are absolute turds when he doesn't have a guy above him filtering him out), because whether he's good or bad, he always tries to produce intriguing television. That's something that late-period Bischoff, Nash, Sullivan, and others failed to do for the company. We can debate the merits of his work up and down, and I'm right with you that there wasn't a lot to like by Fall Brawl 2000, but the man always put his all into each Nitro and Thunder, and for that I've got take my hat off to him.
I'm a WCW fan who was envious of the Attitude era, so I'm a bit different in that I don't care so much about the wrestling aspect of it. When the WWF received the infusion of the WCW castoffs, they suddenly had the benefit of being able to put on great matches along with the entertaining Attitude style of booking (which remained somewhat close to Russo and Ferrera's style until Stephanie took over in late 2000). Meanwhile, with this best of both worlds in the WWF, we had neither under Kevin Sullivan.
I've thought a lot about his mistakes (as it was a more entertaining way to spend my time than actually paying attention to those shows), and he should have made the best out of the Radicals leaving, sending a message that their fears were unfounded and that the proper guys were going to get pushed. Throwing the belt on Sid was the absolute wrong choice to make. While you can argue that no other young guy was ready for the belt, I'd argue that they could have gone with either Jarrett or Booker that January (as both men would hold the title later that year anyway).
Sid? Well, Sid was actually over in January, but that was due to him being booked as the dim-wittingly goofy but tough-as-hell brawler that he was molded as during the Powers That Be era. Sullivan tried to recast him as the straight babyface, and, when that failed, turned him heel to feed him to Hogan. None of these choices were the right ones to make, especially when Hogan was brought back as the red and yellow superhero, aborting the purported character change that put him on the shelf in October (and was finally used in April when the New Blood storyline began).
I'll say it again: The only minor success story of Sullivan was Vampiro finally getting over, which Russo fumbled when he turned him heel and started that Carnival of Darkness crap. Hell, Vampiro as World Champ would have been some seriously ballsy booking and may have been exactly what WCW needed at the time, but Sullivan wouldn't even dare put the Hardcore Title on him during this time.