On May 11, 1970, Kauffman was traded, completing a trade on September 2, 1969, he was traded by the Chicago Bulls with Jim Washington to the Philadelphia 76ers for Shaler Halimon and Chet Walker. Kauffman was sent as the player to be named later on May 11, 1970. Later, the expansion Buffalo Braves acquired him and a 1971 2nd round draft pick (Spencer Haywood was later selected) from the Philadelphia 76ers the day of the NBA Expansion Draft, May 11, 1970, in exchange for veteran forward Bailey Howell. Kauffman never played for Philadelphia.