The 12-team College Football Playoff format has opened the door for more programs to chase a national championship, but not every blue blood is being penciled into the bracket. Bleacher Report's David Kenyon released his "buying or selling" breakdown of the top 2026 contenders on Tuesday, and a pair of brand-name programs landed in the "sell" column right out of the gate. Both USC and Michigan return their starting quarterback, key veterans and impact transfers heading into the fall, yet brutal conference slates have national analysts cooling on their playoff chances before fall camp even opens. USC roster questions and brutal Big Ten draw Kenyon's hesitation with USC starts with the schedule. The Trojans face Indiana, Ohio State, Oregon, Penn State and Washington, a five-game gauntlet that would test any roster in the country. "If you're seeing 10-2 or better for either one, good luck," Kenyon wrote about USC and Michigan.…