Wednesday on IB Nation Sports Talk means Mailbag Day! Irish Breakdown answers listener/subscriber questions about Notre Dame football and more on today's show. Some of the topics include:

* Is Jaden Greathouse switching jerseys from No. 19 to No. 1 because he has confidence in himself or maybe even borderline cocky?

* Thoughts on Notre Dame's chances to make a "good run" in the College Football Playoff.

* What kind of season will grad transfer Liza Karlen have for Notre Dame women's basketball?

* Who will be Notre Dame's "game wreckers" at each position?

* Should there be separate Heisman trophies for defensive players and/or quarterbacks?

* Should former Heisman winners be the only ones who can vote for the award?

* Would Brady Quinn have had a better career if he was drafted by a better team?

* If we gave truth serum to Brian Kelly and Marcus Freeman, what would we ask them?

* Will Howard Cross have a better season, worse season or about the same season this year compared to the one he had last year?

* More!

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