He started the Grey Cup in 2007 where he was leading an offensive line that allowed the fewest sacks in the CFL.

Picard tested free agency for a second time in his professional career and signed with the Saskatchewan Roughriders on February 16, 2012.

[6] On the same day that he was released by the Roughriders, and Picard signed with the Winnipeg Blue Bombers, returning to the team that drafted him.

In February 2019, he became the head coach, in addition to retaining his duties as offensive coordinator, where his team finished with a 8–1 season and a 1–1 record in the playoffs.

The team finished with a 4–4 record in 2021 and made it to the semi-final vs Vanier College, the eventual Bowl d'Or winner (RSEQ Championship).

In 2022, Garneau was off to a poor 1–3 start before finishing strong with a berth in the semi-final for a second year in a row, but fell short to reach the championship game.

[2] He spent one season with the team before resigning on November 16, 2023, after the school decided not to renew the contract of head coach Mathieu Lecompte.

[14] On January 22, 2024, it was announced that Picard had joined the Toronto Argonauts to serve as their running backs coach.