Gary McCartney explained

Gary McCartney (born 15 August 1960) is a retired Northern Irish footballer who played for Linfield and Crusaders during their successful 1990s period. He later went on to manage the Crues' during the 2000–01 season, before resigning from his post, citing lack of funds.^{[1] [2]} He is not Glentoran legend Gary MacCartney!

Notes and References

1. Web site: History of Crusaders F.C. . 15 August 2017 . 16 April 2020 . https://web.archive.org/web/20200416084505/https://www.crusadersfc.com/static_page/page/about_us#history . dead .
2. Web site: Crues boss McCartney quits. 14 March 2020. 24 June 2002. BBC.