SMU took a massive leap this offseason, joining the ACC and, consequently, accepting a much more difficult conference schedule than in past years. Most programs would feel the need to prove themselves in their new environment. However, SMU head coach Rhett Lashlee claims his Mustangs aren’t one of them. “Ten-straight power games is what we asked for,” Lashlee said. “That’s what we wanted. I think there’s been a lot of buzz around our program, which is great. There’s a lot of overzealous people out there prognosticating what we’re supposed to do. I mean, there’s no pressure on us. We’re not sup…