Two things are safe to say about the future of the College Football Playoff: Someday it will expand to include more than four teams. That expansion is unlikely to happen soon.ESPN playoff reporter Heather Dinich joins AP's Ralph Russo this week for an all playoff talk edition of the AP Top 25 College Football Podcast. They discuss why we are not on a fast track to expansion and what hurdles need to be cleared to get there. And what would be the best expand playoff formats and what would have to change to improve the way college football crowns a national champion.