As a rookie in 1967, because of his speed, he was listed as a split end behind Bob Hayes, but also served as a backup at running back.
He replaced an injured Dan Reeves in the Eastern Conference Championship game against the Cleveland Browns, scoring 3 touchdowns (2 rushing and one receiving).
In 1969, with Reeves struggling after having off-season knee surgery and Baynham suffering from bruised ribs,[4] it opened the door for rookie Calvin Hill to win the starting halfback job in the second preseason game.
[8] On May 3, 1972 after a year out of football, the St. Louis Cardinals claimed him on waivers from the Chicago Bears, but would miss half the season with a shoulder injury.
[9] His son Grant Baynham, also played for Georgia Tech, receiving the Robert Cup, an award given to school's top student athlete.