Trickett started seven games a year ago, completing 53 percent of his passes for 1,605 yards with seven touchdowns and seven interceptions.
In his first start of the season, Trickett suffered a torn labrum in his throwing shoulder that he underwent surgery on in the offseason - causing him to miss spring practice this season. He also suffered two concussions over the course of WVU's 4-8 season in 2013.
"Clint is 100 percent healthy and is ready to play," said WVU head coach Dana Holgorsen in a statement from the school "He worked hard last season and showed a lot of ability and leadership and deserves the chance to lead the team as a senior.
"He will be our starter."
With Trickett sidelined during the spring Paul Millard, Skyler Howard and Logan Moore took snaps at quarterback for the Mountaineers. Freshman William Crest will also be added into that group when WVU opens camp in August.