While you were enjoying your summer vacation, our own Dennis Dodd was investigating one of the biggest issues in college football. Not conference realignment, not the issue of paying players, but a topic that will likely determine the future of the sport.

If you haven't yet, go check out Dodd's multi-part series on concussions -- you can find all of the features indexed HERE -- and stick with CBSSports.com all week to get background on the issue and learn more about the competing interests at play.

Dennis was kind enough to sit down with me this week and discuss both what he learned while investigating the issue and how he thinks the sport may change moving forward. Check out the full podcast in the player below or click here to download the MP3