Oklahoma is making staff changes after a disappointing 8-5 season.

The changes include offensive coordinator Josh Heupel, who will be fired according to SI.com and confirmed by the Tulsa World.

The changes are set to be announced at a press conference on Tuesday at 11 a.m. According to SoonerScoop, Stoops came back from vacation early to finalize changes and make the announcement.

Earlier in the week, co-offensive coordinator and wide receivers coach Jay Norvell was reportedly let go.

Heupel has served as Oklahoma's offensive coordinator for the past four seasons. The Sooners were 20th in points per game in 2014 and 23rd in yards per game. The Sooners scored just over 36 points per game and had nearly 465 yards per game at 6.41 yards per play. He posted a message to his Twitter account Tuesday morning.

The offense struggled in the final game of the season, a 40-6 loss in the Russell Athletic Bowl to Clemson. In all five losses in 2014, Oklahoma gave up at least 31 points. In three of those losses, the Sooners scored at least 30 points.

Heupel was Oklahoma's quarterback when the Sooners beat Florida State for the 2000 BCS Championship and finished second in the Heisman voting to the Seminoles' Chris Weinke that year. He served as Oklahoma's quarterbacks coach for seven seasons before becoming the offensive coordinator.

For more Oklahoma news, visit SoonerScoop.com.

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Nick Bromberg is the assistant editor of Dr. Saturday on Yahoo Sports. Have a tip? Email him at nickbromberg@yahoo.com or follow him on Twitter!

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