Marlin Briscoe was the first African-American quarterback to start a pro game 34 years ago for the Denver Broncos. Now he's trying to make a difference again at an outreach program in Los Angeles. After his release from the Broncos, Briscoe latched on with the Buffalo Bills and became a wide receiver, a position he had never before played. The first season, he became the Bills' offensive MVP. A year later, he led the league in receiving and became an All-Pro