What wins college football championships? A potent defense? An explosive offense? In the era of name, image and likeness, it is money. Lots of it. It can cost as much as $10.5 million for a title-contending starting offense and defense in the new Power Four conferences. The big-ticket item, of course, lines up behind the center. A blue-chip quarterback in a Power Four conference — schools like Alabama, Michigan and Washington — can expect to earn hundreds of thousands of dollars annually through name, image and likeness, or N.I.L., deals. A quarterback in the Southeastern Conference can bring in more...