Yea he got fired, read between the lines here...
http://www.gamedynamo.com/article/showarticle/9671/en/bungie_appoints_a_new_ceo_as_harold_ryan_steps_down_from_his_role_as_studio_president
EDIT:  Whatever the case may be though according to this biography the guy started as a game tester and ended up being a studio head.  That there is the American dream people.
http://www.mobygames.com/developer/sheet/view/developerId,15681/
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	EDIT: No chance of any other way with all that talk from the new CEO and NONE from Ryan, not a peep.