Following his hockey career, LeLacheur pursued a business career path, working for his family's Western Moving and Storage business for 25 years.[3] He became Western's president in 1982, serving in the position until the company was sold in 1992.[4]
In 1984, before becoming involved with any Canadian Football League (CFL) team, he was the chairman of the Grey Cup festival.[3] He was a board member of the CFL's Edmonton Eskimos in the 1980s.[5] From 1992 to 1998, LeLacheur served as the head of Economic Development Edmonton (EDE), also known as the Edmonton Economic Development Corporation (EEDC).[6][7][8] In 1994, LeLacheur brokered a deal that gave Peter Pocklington full control over the Northlands Coliseum.[9]
LeLacheur became the president and CEO of the 2001 World Championships in Athletics, hosted in Edmonton.[3]
LeLacheur then served as the team president and CEO of the Eskimos from 2002 to 2011.[1] He began his tenure with the team as the chief operating officer (COO) of the franchise.[3] Edmonton hosted the 90th Grey Cup in 2002, with LeLacheur serving as the game's managing director.[10] During his tenure with the Eskimos, he oversaw new building additions to the team's Commonwealth Stadium.[10] LeLacheur won two Grey Cup championships with the Eskimos, in 2003 and 2005.[7] In 2010, he publicly criticized the team as they started the season 0–4.[11] Edmonton would again host Grey Cup festivities in 2010.[8] LeLacheur was named the winner of the Hugh Campbell Distinguished Leadership Award for the 2011 CFL season.[8] He left the team due to health concerns, after experiencing complications stemming from surgery for prostate cancer.[3]
In December 2011, he was appointed as the chairman for a three-year term for Horce Racing Alberta (HRA), a private, not-for-profit organization.[10] In December 2017, LeLacheur was named the President and CEO of the CFL's BC Lions.[1] At the time, he was still serving as HRA's chairman of the board.[1] His tenure with the Lions began in January 2018 and ended following the 2022 season.[1] During his tenure with the team, he was tasked with finding new ownership.[7] He was named the Hugh Campbell Distinguished Leadership Award winner for a second time for the 2022 CFL season.[12]
Though he retired following his Lions tenure, he was lured out of retirement and named the interim president and CEO of the Edmonton Elks on 22 August 2023.[5] This marked his second tenure in those positions with the franchise.[13] During this second tenure, the Elks reviewed their ownership structure; the team has been notably community-owned since 1949, though the Elks have been discussed in Canadian football media as potentially moving toward private ownership.[14][15][16] LeLacheur mentioned the team's financial struggles over the few previous seasons as a factor that "can't be overlooked".[15]