Does Chris Borland's Retirement Foretell a Future NFL Talent Gap?

RUSH: Is the National Football League going to have the absolute best talent, or is the best talent gonna quit?  Is the best talent not even gonna go into the game because of the fears of long-term, life-lasting brain injury and other such things? The league is facing this, and the Borland retirement announcement yesterday is causing everybody in the NFL to, one degree or another, face this head-on.