New starting quarterback Jason Campbell played his first game at the Tampa Bay Buccaneers. Only field goal points took the first half, with both teams tied at halftime 3-3. In the second half Jason Campbell threw a three-yard touchdown pass to TE Chris Cooley, then Bruce Gradkowski threw a three-yard touchdown pass intended for Galloway but instead bounced off him into Becht's hands, making the game tied in the third quarter 10-10. Though the Redskins performed fairly well in the fourth quarter, Jason Campbell throwing another touchdown pass to Yoder, the Buccaneers had already pulled ahead by ten points. The final score was 20-17, Bucs, dropping the Redskins to 3-7. Stats
Question: How many more touchdowns did Campbell throw than Gradkowski?
Answer: 1