TCU finished last season with a top-15 SP+ offense and their defense forced 22 turnovers. Being unranked in a preseason poll is irrelevant when they return a quarterback who threw for over 3,200 yards. Their schedule is brutal, but that's a feature of playing in the Big 12, not a mark against their program's credibility. Last I checked, rankings in August don't determine who's allowed to have a conversation.