Douglas joined Glenelg at the end of the 2022 season as the Tigers' Women's Football Operations and Talent Manager and as a Men's league assistant coach, returning to the black and yellow after playing 27 games there between 2006 to 2012 as part of a 'mini draft' for interstate AFL recruits.
Douglas featured in 246 games for the Adelaide Crows, winning the Malcolm Blight Medal in 2010, and ranks 13th on the club's all-time games list.
Since retiring from the Crows in 2019, Douglas has also held roles as Director of Coaching at St Peter's College and Head Development Coach at Simon Black Academy.
Douglas will join the Suns as a development coach ahead of the pre-season.
Douglas is one of many changes to the Suns 2024 coaching department under new head coach Damien Hardwick.
Former Sydney Swans premiership players Nick Malceski and Rhyce Shaw will take on roles as the development coach and director of coaching-academy respectively, whilst Richmond premiership player and Geelong development coach Shaun Grigg will reunite with his former coach Hardwick as an assistant coach.
Gold Coast senior assistant Steven King departed the club for a position at Geelong, having taken over as interim coach after Stuart Dew's sacking. VFL coach and development coach Jackson Kornberg also left the club for a return to Victoria.