LARAMIE -- Rex Johnsen said last month in Las Vegas that Wyoming's offensive line was really close to being a 10-deep unit. "Offensive line depth is a concern in this program because right now you have one entire offensive line recruiting class where nobody practiced today with the first or second group," Wyoming head coach Jay Sawvel said Wednesday inside War Memorial Stadium after the Cowboys' first official fall practice. "We talk about, they need to prevail in practice, not just survive," Wyoming's offensive line coach said Wednesday, adding every coach in the nation is currently worried about depth in the early stages of the season. "... Now it's time to play football, right? "I thought we made it too hard on our offensive line," he added.