Mack is on the football team, but he's also smart, at least compared to the rest of the team.  He puts up with Kevin, but really doesn't like to be called Mack Daddy.

Mack is sort of in a relationship with Jodie, at least, he is when she has the time to be.

He's finally paid off a debt to his father that he's owed since third grade, after spending most of the summer driving an ice-cream truck