Get the amount of money they spent on players on average pre-glazier, compare with post-glazier, then get the avergae ticket prices pre-glazier, and compare post glazier, then spell out why the club being in so much debt is shit for making a decent team and for the fans, and then procede to laugh at him.
Don't give a shit if he thinks they're a viable business, they are a football club, and their completely unneccesary debt is hampering their ability to win football matches.