 Since retiring, Boersma moved into physiotherapy and coaching.He was appointed first team coach and then Assistant Manager at Swansea City, at a time when the Welsh side was rising up the Divisions from the old Division Three (League One) to what is now the Premiership.After leaving Swansea in 1983, he spent time at Lincoln City as Assistant Manager, and also spent most of the 1986–87 season as first-team coach at Doncaster Rovers, even turning out for the club's reserve team in the Central League

He linked up with Souness again as physio at Rangers before taking on coaching roles under Souness at their former club Liverpool.