Dallas Mavericks owner Mark Cuban is part of a group considering formation of a football league that would compete with the NFL for players drafted lower than the second round. The league, still very much in the preliminary stage, would play its games on Friday nights. The NFL does not play then because of the potential conflict with high school football. "It's a pretty simple concept," Cuban said in an e-mail to The Associated Press. "We think there is more demand for pro football than supply." The proposal was first disclosed by The New York Times on its Web site,...