A few weeks ago, Scout.com was told that McCallum's staff at Detroit didn't attempt to recruit another point guard this season and that turned out to be the tell-tale sign that McCallum's son was headed to play for his pop.
"I could tell (he didn't recruit anyone)," McCallum said. "He'd been nervous and stressing for a while. He was probably the only school that hadn't been recruiting a point guard."
On TV Wednesday afternoon, McCallum said that he looked forward to helping his father lace them up and take a run at Butler in the Horizon League. McCallum is a McDonald's All-American who is presently ranked No. 23 in the Scout.com rankings.
Though McCallum went first, he wasn't the only son to commit to his father's program on the first day of the signing period. Trey Zeigler became the second Top 50 prospect in as many years to sign with a Mid American Conference team. Last season, Akron added Top 50 standout Zeke Marshall.
Zeigler committed to play for his father, Ernie, at Central Michigan. Zeigler is Scout.com's No. 34 prospect in the Class of 2010.
"It's a great recruiting class coming in and I think I'll be able to come in and do great things," Zeigler told ESPNU.
Zeigler said his father saved a lot of money by recruiting his son. Trey said Ernie would walk out to the mailbox and slip a CMU letter into his son's mail and not worry about the postage.
"He wrote, ‘you can be a big time guy in the MAC. Don't be afraid, you'll be a big fish in a small pond from Day One.' He walked it to the mailbox himself. I think he just brought it home and put it in the stack."
Lost in the shuffle of the announcements is one simple but important fact of life. McCallum and Zeigler both get to spend more time with their fathers. Coaches are a different breed, they're on the road, away from home and make sacrifices for their families. In this case, two head coaches are going to have a chance to share their journey with their sons.
"For a father that is really close to his son, and I've missed so many events with him, to now have the opportunity to spend that time with him it's a sense of pride that I can't even put into words," Ernie Zeigler said.
"As a dad, I know there will be times he'll hate me but it'll be special spending time with him and helping him become a successful adult."