Wait where in the world did you get that number!? 7-1???
The Utes are 52-90-3 against Pac 10 teams. Nowhere near great, but have had recent success with a 4-3 record under their most recent coach.
No one really knows what the conferences are going to be. The ones you state (which, yes are a rumor and have been talked about) wont go through because USC, Cal, Stanford, and UCLA will no let that happen. They wont let them split divisions like that.
The Utes will be good in the Pac 10, but that will mean fighting for the top half of the conference with Oregon State, Oregon, Stanford, Cal, U Dub, and of course USC.
Great move for Utah and as a life long fan of west coast college football, im stoked for it.