IST WITH PRATER & THE BALLGAME: Former USC quarterback Malachi Nelson is visiting Boise State – we debate the pros and cons of chasing players in the transfer portal, do the Broncos need a QB behind Maddux Madsen and CJ Tiller, Ryan Leaf on calling the FCS championship game Sunday (noon, ABC) and Big Sky commissioner Tom Wistrcill on Montana’s need to win a title for the league, Bob (Bronco Focus) sits down with basketball star Chibuzo Agbo on the eve of the Mountain West opener at San Jose State