That is the backup QB for ASU. The starting QB went out 2 weeks ago at the very end of the game.. He was maybe going to be back today, but was not. ASU is really good this year. They lost to UCLA because that was the 1st game the backup ASU QB played.
I call this game the "Landau Bowl" because one son graduated from ASU and one from USC. So for me it was very entertaining to watch and always a winning game either way. You also have to realize as far as the last pass, USC had some big pass interference calls against them in the 4Q and was a little skittish.