In 2004 he joined the Hamilton Tiger-Cats as the team's receivers coach and stayed with the team for two years until rejoining the Toronto Argonauts, again, as the receivers coach. After former Argos' offensive coordinator Kent Austin was hired as head coach of the Saskatchewan Roughriders, LaPolice joined him as that team's receivers coach. After Austin left the team and Roughrider offensive coordinator Ken Miller was promoted to head coach, LaPolice was, in turn, promoted to offensive coordinator in 2008. The team finished 12–6 in 2008 and lost in the first round of the playoffs. In 2009, the Roughriders finished in first place in the West Division for the first time in 33 years, won the West final and lost in the Grey Cup final to the Montreal Alouettes on the last play. LaPolice's offence finished second in scoring and in touchdowns scored as he helped first year starting quarterback Darian Durant to a Western Division All Star nomination.