“Tebowing” has swept the nation since the Denver Broncos promoted former Heisman Trophy winner Tim Tebow to starting quarterback last month. The trend pokes fun at Tebow’s penchant for dropping to a knee in prayer, with his elbow on his knee and his fist under his bowed head. The pose has inspired a website and countless imitators, with the latest being a group of Marines on the field prior to the Broncos-Jets game last Thursday. Tebow, perhaps the most divisive figure in the NFL right now, continues to win games. And after scoring a touchdown late in the fourth quarter…