Teague, who has spent the past three seasons as defensive coach at West Coast, will join the Saints in the same role for the 2014 season after relocating from Perth.
The 32-year-old is the first appointment made since Richardson was announced as senior coach last week, effectively replacing Dean Laidley who departed to Carlton.
The Saints also announced that player academy manager Tony Micale was returning to Perth and would not continue with the club in 2014.
Teague played 33 games for North Melbourne and 50 games for Carlton in a six-year AFL career from 2001 to 2006.
In 2004 he won Carlton’s best and fairest and the AFL Player’s Association’s most courageous player award.
In 2007 he joined Carlton’s VFL affiliate the Northern Bullants as a playing coach, which combined with a full-time development role at the Blues.
Teague coached the Bullants to two VFL Grand Finals before moving to West Coast where he was a valued member of John Worsfold’s coaching panel before deciding to relocate to Melbourne at the end of the 2013 season.
Twitter: @AFL_Nathan
