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Greg Jackson has become more famous in 2012, but went from behind-the-scenes to widely-hated.
Jackson, one of the two non-fighters on this list, has been under fire for a long while, but the criticisms have grown in number exponentially in the last twelve months.
Looking back, it all started back in 2010, when Nate Marquardt lost to Yushin Okami at UFC 122. White criticized the long-time contender's corner for telling him he had the fight won, and encouraging him to coast to the judges (which, obviously, did not work out). This was followed by the very public divorce between Rashad Evans and the Jackson camp over Jon Jones' championship reign in March 2011.
In 2012, though, every time a Jackson-coached fighter has turned in a less-than-amazing win, the keyboard warriors instantly begin complaining about how game plans and strategy are ruining MMA's pure spirit, rooted in the ancient tradition of Rock'em Sock'Em Robots. Carlos Condit, for example, found himself criticized by Nick Diaz's rabid, inconsolable fandom when he earned a decision win by demonstrating superior range and better lateral movement, rather than the electrifying knockouts that endeared him to fans.
Worse yet was the aforementioned Clay Guida vs. Gray Maynard fight, which was decried by fans who remember the exciting, pre-UFC 107 Clay Guida. To top it all off, when UFC 151's cancellation was announced, Jackson and star pupil Jon Jones were pointed to as the responsible parties and became near-pariahs in the MMA world.
Obviously, Jackson is not actually destroying MMA, and his fighters are not all boring plodders. He was the coach of Rashad Evans when he punched out Chuck Liddell, and still instructs Donald Cerrone, one of the lightweight division's best finishers. On the flip-side, there is no getting around the fact that Jackson's fighters do, sometimes, fail to impress.
Either way, Jackson's name has certainly come up more in 2012. Going from relative obscurity to one of the sport's most widely-reviled personalities, though, is not usually a good thing.