#7 Dusty Rhodes

The late great Dusty Rhodes was one of the two hearts, the other being Ric Flair, of the NWA. So as business rivals with WWE in the 80s, it was no major surprise that much of Dusty's run with WWE was a complete joke.
He did have some good moments and matches, but overall his run was extremely underwhelming and silly at times.
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In my opinion, the only thing that could have saved him and elevated him to the main event in WWE would have been to win the 1990 Royal Rumble. That spot, however, was saved for Hulk Hogan.
After a decent feud with Ted DiBiase, Dusty left WWE and returned for better things in WCW. Dusty's run was that bad that a Royal Rumble win would have been his only saving grace in wrestling for WWE.
Dusty could have had great WWE Championship matches with Hulk Hogan and Randy Savage in the main event of WrestleMania, but it wasn't meant to be.