[4] He was originally assigned to the Class-A Appleton Foxes, but was promoted to the Double-A Knoxville Sox after just six games.

Foley started the 1979 season with the White Sox, splitting time as their primary catcher with Bill Nahorodny.

[10] He was demoted to the minors, splitting the next two months between Iowa and the Double-A Glens Falls White Sox.

He spent the full season with the White Sox' new Triple-A affiliate, the Edmonton Trappers, where he batted .296 and a professional best of 11 home runs.

[5] In 1982, Foley was back in the majors, but as the White Sox' third-string catcher behind Carlton Fisk and Marc Hill.

This time, he had what would be his best batting average in a full Triple-A season at .319, and he hit double digits in home runs with 10.

That season, he was named Florida State League Manager of the Year after leading Tampa into the playoffs, where they lost in the first round.

[1] In 1989, Foley was again promoted, this time to Triple-A, with yet another new White Sox' affiliate, the Vancouver Canadians of the Pacific Coast League.

[15] Prior to the 1992 season, Foley was hired by the Chicago Cubs to manage their Double-A affiliate, the Charlotte Knights.

After finishing the season in first place with an 85–59 record, the I-Cubs won the league championship over the Nashville Sounds—yet another new Triple-A affiliate of the White Sox.

He returned to manage Rochester in 2000, this time finishing fifth, before spending a season as the Orioles' roving minor league catching instructor.

He was hired by the Colorado Rockies to manage their Double-A team, the Tulsa Drillers, prior to the 2003 season.