The source stated that the dismissal was caused by the long-time disagreements between Gertsmann and VP of games Josh Larson. It was also rumored that, as of recent, Gertsmann’s “work had become sloppier, more flippant and smacked of a celebrity attitude may have only been solidified by the questionable quality of the review.” Either way, the lack of communication surely didn’t help Larson’s case:
"People used to think of Larson as a sort of non-intrusive cousin of Bill Lumberg from Office Space—an empty suit who was more of an annoyance than a liability. Now, people are referring to him as the moron lieutenant from Aliens who sits around stunned, doing nothing as everyone drops dead around him."
It would be interesting to see the truth come out in this case. Otherwise, GameSpot has a lot to lose in the long run: staff, credibility and, eventually, readers.