You could never say that George Martin did not make the most of his opportunity in professional football.
A New York Giant for his entire pro career (1996-08), Amani Toomer was used as a Returner for the first three of his seasons after playing at Michigan. Toomer did fine returning punts, but his calling was to play Wide Receiver at the pro level.
Playing his entire career with the New York Giants (2003-13), David Diehl was a starter in his rookie season after being drafted in the Fifth Round out of Illinois.
Ray Flaherty came from Gonzaga and played in the semi-pro Los Angeles Wildcats of the American Football League. The End would later join the New York Yankees of the NFL, but that was short-lived as the squad folded late in 1928. Flaherty then joined the New York Giants, where he would play until 1935.