As a manager, Kerr gained experience at Kilmarnock, Hibernian and Spartans while progressing through the Scottish Football Association's (SFA) Long-term Player Development pathway, eventually taking charge of the Scotland women's under-19 national team in 2009.

[8] In January 2005 Kerr and compatriot Nicky Grant signed for struggling English FA Women's Premier League club Doncaster Rovers Belles,[9] both making their debuts in a 3–1 home defeat by Charlton Athletic.

[11] Kerr made her senior Scotland debut against the "Auld Enemy" England, a 3–0 friendly defeat at Starks Park, Kirkcaldy in April 1989.

[14] Following her comeback, Kerr later intended to quit national team duty after a tour of Cyprus in 2007, but was persuaded by coach Anna Signeul to return for the UEFA Women's Euro 2009 qualifying campaign.

[15] Prior to the home fixture against Ukraine at McDiarmid Park in May 2008, presentations were made to Kerr, Megan Sneddon and Suzanne Grant who had all reached the milestone of 50 appearances for their country.

[16] Kerr retired from international football, at 39 years old, after the away leg of Scotland's eventual away goals defeat by Russia in Nalchik on 30 October 2008, in the qualifying play-off.

[20] When Jim Chapman resigned as manager of Kilmarnock Ladies in 2004, Kerr took the team's training sessions in the opening months of the 2004–05 season.

[22] After Kerr's playing career took her to Doncaster Rovers Belles, then back to Scotland with Hibernian, she took over as Hibs' player–coach under manager Maggie Wilson in 2007–08.

[36] Anna Signeul, Kerr's manager at international level, described her as a "really British central defender" in respect of "toughness on the pitch, and for her ability to communicate verbally and direct the other players.

"[15] In 2002, journalist Moira Gordon praised Kerr as "uncompromising and tenacious" and "a tough player both mentally and physically, she is good in the air and also with the ball at her feet, and times her tackles well.