#4 nWo hogged the spotlight for years
Not everything was right with the formation of nWo. With Hogan becoming a top star again, the nWo began taking over the main event scene, with top members of the faction getting featured in high-profile matches on a regular basis. WCW didn't pay heed on creating new stars who would take the helm upon nWo's demise.
Also read: 4 times WCW ook shots at WWE on live TV
Incredibly talented athletes like Chris Jericho, Eddie Guerrero, Rey Mysterio, Booker T, and many more never got a chance to break out of the mid-card and showcase their skills as main event stars. The majority of these Superstars left for WWE, one after the other. By the late 90s, WCW realized its mistake and began pushing young wrestlers, but it was too late at that point of time. The group that was responsible for turning WCW into a top wrestling corporation, was also the reason why WCW died a slow death.