Oh nice. But the pressing question: Why does his dad have a different last name than him?
Don't know, and would consider it inappropriate to ask.
Uninformed speculation -many radio / TV personalities adopt a stage name to throw stalkers off the trail, or it could be a marital situation.
Mark talked about Drew on occasion from when Drew was barely in high school. But because of the name difference, I didn't make the connection till after the draft, when it was mentioned in media reports.