Pac-12 schools build most of their recruiting classes with talent from California, as the state serves as a national hotbed. With so many good players available each year out West, Pac-12 programs routinely compete for the same prospects.
Each Pac-12 program has at least one recruit that it desperately wants. However, many other Pac-12 schools likely covet that same prospect.
Oregon is trying to take a speedy prospect from Washington, while Arizona State is fighting an SEC program for an offensive lineman. Also, USC has stiff national competition for several of its top targets.