injury that caused him to miss 14 games. However, he finished the season on an offensive high that included scoring his 100th career goal late in the year. When the Flames replaced Sutter with Bob Hartley in the 2012–13, the new head coach expanded Stajan's role. He responded with what he called his best season, scoring 23 points in 43 games in the lockout-shortened season while earning praise for his defensive responsibility; Stajan's plus-minus rating of +7 led the team and he was one of only two players with a positive total. Following the departure of several of Calgary's top players and with the team entering a rebuilding period, Stajan was expected to centre Calgary's top line in 2013–14. However, he suffered a leg contusion in the team's season opening game that caused him to miss several weeks of play. Stajan appeared in only 63 games for the Flames, but recorded 33 points, his highest total in four years. Injury again sidelined Stajan early in the 2014–15 season. He suffered a knee injury as a result of a knee-on-knee collision with Montreal's Jarred Tinordi that was expected to keep him out of the Flames' lineup for six weeks. The Flames made the playoffs for the first time since 2008–09 in 2014–15, and Stajan played every game of the postseason, forming one of the Flames' most dangerous forward lines with wingers David Jones and Micheal Ferland. Jones and Ferland were the offensive and physical leaders on the line during the Flames' run to the second round of the playoffs, but it was Stajan who scored the series-clinching goal in Game 6 of the Flames' first-round playoff series against the Vancouver Canucks. The Anaheim Ducks would defeat Calgary in five games in the semifinals, ending the Flames' season. Stajan finished the playoffs with 1 goal and 4 points in 11 games. With the emergence of rookie Sam Bennett, Stajan centred the Flames' fourth line throughout the following season, 2015–16, and saw his offensive production decrease accordingly. Stajan went from 17 points in 59 games in 2014–15 to 17 points in 80 games in 2015–16. Coach Bob Hartley was fired in the offseason following a disastrous 2015-16 campaign, and was replaced with former Canucks assistant Glen Gulutzan, who quickly re-established Stajan's third-line position, this time with Kris Versteeg and Troy Brouwer. During the 2017–18 season Stajan played in his 1,000th NHL game in