FORT WORTH, Texas — There was no need for a miracle field goal or a second-half rally against Iowa State. No. 4 TCU played like a team that belonged in the College Football Playoff with a dominant 62-14 win over Iowa State on Saturday at Amon G. Carter Stadium. Not only did the Horned Frogs finish the first regular season 12-0 under head coach Sonny Dykes, they also snapped a three-game losing streak to Iowa State. TCU understood in order to beat an Iowa State team featuring one of the best defenses in the country it would take their best effort offensively. Even without star wide receiver Que…