Team Loyalty in eSports
There is even a Twitter dedicated solely to #RosterMania information.https://twitter.com/MLGRosterMania/status/556486004391936000
We see roster changes all the time, but they occur at a higher frequency right after events. Teams that did not place as high as they expected tend to break up and players go searching for the "god squad". If you take a look at player histories, most professional Call of Duty players have been a part of several organizations in the span of a single year! A website call Esportepdia has all of the information on player histories and achievements for those interested.
Very few names come to mind when thinking of "loyalty" in CoD eSports. However, I think everyone would agree that Nadeshot, of Optic Gaming, has been a part of his organization for the longest period of time. His case, however, is special in that Optic grew exponentially around him.