The first month of the season has jolted from peak to valley to peak for Utah.  Winning both of their key in-state rivalry games against Utah State and BYU, the Utes dropped their only conference game so far in an overtime thriller against Oregon State.  Even in defeat, though, they have shown not just improvements on offense but plenty of competitive spirit.  So has UCLA, the clear South front-runner that has not yet played a conference game.  Off-field adversity did not prevent the Bruins from pounding formerly ranked Nebraska on the road, and they will have recentered themselves on football after a bye last weekend.  UCLA remains vulnerable to the occasional stumble on the road, as a loss at mediocre Cal last year showed.  The South could descend into chaos if the Utes can pull off the upset in this Thursday night showcase, for which they will need a transcendent performance on the ground and through the air from quarterback Travis Wilson.  UCLA’s deeper, more balanced talent should wear down Utah in the second half after a competitive start.   UCLA at Utah, Thursday at 7 PM, ESPN