Per Barry Jackson Sports Buzz TANNENBAUM JOINS ESPN Mike Tannenbaum, the Dolphins’ former executive vice president/football operations, joined ESPN as an NFL front office insider. He began the job on Thursday. He will appear on SportsCenter, NFL Live and other ESPN shows and also will work ESPN Radio’s coverage of the draft later this month. ESPN needed another former league executive after Bill Polian recently retired from broadcasting. ESPN also has Louis Riddick, a former Redskins and Eagles pro personnel director. “I’m very excited about the opportunity,” Tannenbaum said by phone. “I’ve always admired the people and professionals at ESPN, and I’m excited to be a part of the team.” Tannenbaum was the New York Jets’ general manager from 2006 through 2012 and the Dolphins’ executive vice president/football operations from 2015 through the conclusion of last season.