Clint Chelf threw for 292 yards and four touchdowns in his first career start, and Josh Stewart had a career-high 172 receiving yards and scored three TDs as Oklahoma State handed West Virginia its fourth straight loss, 55-34 Saturday.
Chelf, a fourth-year junior, became the third starter at quarterback for the Cowboys (6-3, 4-2 Big 12) this season. Wes Lunt sat out after suffering an apparent concussion last week against Kansas State, and his backup, J.W. Walsh, is out with a knee injury.
Geno Smith completed 36 of 54 for 364 yards and two touchdowns for the Mountaineers (5-4, 2-4), who gave up more than at least 55 points for the second time in two weeks. Stedman Bailey caught 14 of Smith's passes for 225 yards and a score.
The game marked the return of West Virginia coach Dana Holgorsen, who was the Cowboys' offensive coordinator before taking the job in Morgantown.