Are there specific news articles that support this particular point? I don't think there are and that this is pure speculation on your part...
Am not a fan of Marrone but there seems to be excessive hate on the board for a guy that likely made a pure business decision in his own interest like most people would . He had one year left on his contract and was going into a season where his primary QB was going to be EJ. Not exactly a situation which most NFL coaches would savor. So when faced with a choice of having a bad season and getting fired vs taking 4 MM and running, he made the choice most objective folks would....