Grady Brosterhous threw for 242 yards and two touchdowns and rushed for 89 yards as Utah State scored 14 unanswered points in the second half to beat Troy 21-10 on Saturday. The Aggies (1-3) trailed 10-7 at halftime before Brosterhous connected with Eli Wood for a 5-yard touchdown early in the third quarter to give Utah State the lead.