Dual-QB system can be dicey, as Raiders' McGloin knows

Daily Raiders blog for NBC Bay Area website: At Penn State, Matt McGloin had to share quarterback duties for two years. Now with the Raiders and giving way to Terrelle Pryor for some series, McGloin knows the pitfalls. http://www.nbcbayarea.com/news/sports/Raiders-Plan-for-McGloin-Pryor-to-Share-Time-is-Dicey-235243391.html