The league announced Tuesday Trestman has been named the head coach/GM of the new franchise in Tampa Bay.
`"Marc is a two-time coach of the year who also led his teams to three CFL Grey Cup championships,'' XFL commissioner Oliver Luck said in the statement. "He's just the kind of offensive-minded coach whose style will fit the up-tempo, fast-paced game we will deliver to fans when the XFL launches next February.''
Trestman, 63, spent the previous two years as the Toronto Argonauts head coach. He led the franchise to a Grey Cup title in 2017 but was fired after last season when the club finished last in the East Division with a 4-14 record.
Trestman's first CFL stint was with the Montreal Alouettes (2008-12), where he won two Grey Cup titles (2009-10) before becoming head coach of the NFL's Chicago Bears.
"I am very excited to be on the ground floor with Oliver, his team, and the other coaches across the XFL to help re-imagine football,'' said Trestman. "I started my coaching career in Florida while I was in law school, and personally know the passion and love for the game that football fans have in the Tampa Bay area and across the state.
"I can't wait to begin putting a coaching staff together and building a team that will play disciplined, fundamentally sound and exciting football come February. Many thanks to Vince McMahon and commissioner Luck for this tremendous opportunity.''
Trestman joins Bob Stoops (Dallas), Pep Hamilton (Washington, D.C.) and Jim Zorn (Seattle) as the XFL head coaches named to date. Trestman was named the CFL's coach of the year in 2009 and '17.
Trestman also has the distinction of having coached an MVP in both the NFL (Oakland's Rich Gannon, 2002) and CFL (Montreal's Anthony Calvillo, 2008-09).
He began his coaching career in 1981 as a volunteer assistant coach at the University of Miami. In 1983 he was elevated to the Hurricanes' quarterbacks coach as Miami won its first NCAA title. His college coaching resume also includes two seasons as offensive co-ordinator at NC State (2005-2006).
A Minnesota native, Trestman earned a B.A. in political science from the University of Minnesota and a J.D. from the University of Miami Law School and has been a member of the Florida Bar since 1983.