FILE - In this Aug. 13, 2016, file photo, the Los Angeles Rams take the field at Los Angeles Memorial Coliseum for a preseason NFL football game against the Dallas Cowboys, in Los Angeles. Opened in 1923, the Coliseum first gained the Rams as a tenant in 1946 when they moved west from Cleveland. (AP Photo/Ryan Kang, File)

FILE- In this Aug 13, 2016, file photo, youngsters play in a pee-wee football game during halftime of a preseason NFL football game between the Los Angeles Rams and the Dallas Cowboys in Los Angeles. USA Football is piloting the sport’s first long-term development program in the hopes of growing the game and catching up to other sports around the world. The sport’s governing body has launched its Football Development Model. Six youth leagues will team up with USA Football in the hopes of attracting more young players and improving skills. The leagues will experiment with new ways to coach fundamentals in practice and different ways to play the game. (AP Photo/Ryan Kang, File)