[1][2] His teams won 8 Yankee Conference titles and earned 6 trips to the National Invitational Tournament.

Some of the players he coached during his tenure include Julius Erving, Rick Pitino, and Al Skinner.

After 2 years in the United States Army, and after receiving an honorable discharge, Leaman earned both a bachelor's and master's degree from Boston University.

As senior captain in 1959, he led the Terriers to an overall record of 20–7, culminating with a trip to the NCAA East Regional Final.

Leaman continued as an assistant under Johnny Orr until he was promoted to head coach for the 1966–67 season.