WALTHAM, Mass. -- The Boston Celtics have given extensions to president of basketball operations Danny Ainge and coach Brad Stevens, the team announced Wednesday. "It's the principle job of ownership to find the very best people to run the basketball side -- to find them, recruit them, bring them in and offer them all the support and encouragement we can and retain them by creating an environment where they want to stay," said Celtics co-owner Wyc Grousbeck. "These conversations happened recently, very forthrightly. There was great interest on both sides. They were easy conversations. It just represented a great re-commitment from Brad and Danny to the Celtics. "These jobs -- the president of basketball operations and the head coach of the Boston Celtics are storied positions. Both were held by the incomparable Red Auerbach. I personally believe that Red would be very happy. ... These are the exact people we want to run the Celtics." Terms were not released and both Ainge...