New director of football operations Troy Vincent can see in the NFL's future a developmental league, an eighth official on the field for games, and coaches using tablets on the sidelines to call plays. Vincent, a former Pro Bowl player and president of the players' union, recently replaced Ray Anderson, who left the league to become athletic director at Arizona State. Saying he ''shares the responsibility for preserving and growing the game,'' Vincent adds one project that will be discussed is establishing a developmental league. He plans to investigate whether there's an appetite for a spring league - NFL Europe folded in 2007. More...