Bill O’Brien returns to New England, where he spent 2007-11 in the same capacity under head coach Bill Belichick. FOXBORO — The New England Patriots have completed their search for a new offensive coordinator. University of Alabama offensive coordinator Bill O’Brien has agreed to return to the organization, as first reported by ESPN. Just over one week removed from issuing a press release to announce their intention to begin interviewing prospective candidates, O’Brien had been the most high-profile name linked to the vacancy. A source confirmed to Patriots Country last Tuesday that O’Brien was indeed among the Pats most prominent…