From 2012 to 2014, Kitna was a math teacher and head football coach at alma mater, Lincoln High School. As coach he led the team to a 5–5 record in the 2012 season. Lincoln improved to 8–2 in 2013 and 11–1 in 2014. Lincoln shared the Washington Interscholastic Activities Association District 3A Narrows regular season championship in 2013, with a 5–1 conference record tied with Lacey Timberline. In 2014, Lincoln went 7–0 in conference play and won the outright regular season championship.