He gained notoriety for his flamboyant dress and playboy lifestyle, which earned him the reputation of being a "poor man's Joe Namath".

He chose to attend Maryland because he felt it offered a balance between a social life and the opportunity to play football.

He played as a back-up quarterback behind Dick Shiner and Alan Pastrana, but rarely started because of disagreements with the coaching staff.

[1] In his later life, Corcoran claimed to have led Maryland to a 27–22 victory over the Navy varsity team in 1964;[4][5] but he did not actually play in that game.

Not for nothing was he called the "poor man's Joe Namath," after the Hall of Fame New York Jets quarterback and notorious skirt chaser.

[1]In 1966 and 1967, he spent some time in camp with the American Football League's Denver Broncos, but was ultimately cut from the team.

In 1967, Corcoran spent time on the AFL New York Jets taxi squad, where he was first described as a "poor man's Joe Namath".

[3][6] (He appeared in two games for the Patriots, completing 3-of-3 passes for 33 yards vs the Miami Dolphins and going 0-4 and two interceptions vs the Houston Oilers.

)[7] In 1969, Corcoran was back in the minors, signing a hefty three-year, $125,000 contract with the Pottstown Firebirds, a farm club of the Philadelphia Eagles.

[10] The Sabres released him in the middle of the season due to his ignoring instructions from the head coach, but was quickly brought back.

He was convicted of fraud for selling property he did not own, and in 1997, Corcoran spent six months in a federal prison for tax evasion.