Their offense is very efficient. They haven't had to face any teams with an elite pass rush which is where, if at all,  I think they  have any weakness. USC was able to do some things as was Washington early to disrupt Huntley, but they still scored a lot of points in both games. Neither of those teams are elite. I would say LSU, OSU, and Clemson would be the 3 teams Utah would have a really hard time staying competitive with based on athleticism, pass rush, and balance on offense.  Outside of those 3, I am not sure I'd bet against them.  

They are super deep so unless a bunch of underclassman jump, they'd still be solid next year. Not elite, but solid