You may watch this little Friday night walk-through tradition, and wonder how USC ever wins any games at all. But O-Line coach Pat Ruel does have 34 years of experience in both college and the NFL, and has molded such talents as Sam Baker and Ryan Kalil, so he must be doing something right. And with a bunch of hefty o-liners added in this month’s recruiting class, this power-walking tradition is only going to get fatter.