Castille flashed his big play potential as a freshman, picking off two passes to go along with 14 tackles on the year. As a sophomore, he had 28 tackles, three for loss, and two INT�s for the season. He stepped up his game as a junior last season, picking off five passes to go along with 65 tackles, 4.5 for loss, and a sack. Castille�s all around play continued this season, where he had 61 tackles, 6.5 for loss, 1.5 sacks, and two interceptions.
Castille is a versatile defensive back that can help out against the pass, the run, or as a blitzer. He is a good athlete, with good quickness and shows the ability to stay with receivers on intermediate routes. He has a very good nose for the ball when it is in the air, and knows how to find it and make a play on it. He is aggressive in run support when he diagnoses the action and is not afraid to come up and make the play. Castille�s size, athleticism, and aggressiveness could allow him to move to free safety in the NFL along with his experience as a corner.
Speed may be the biggest question mark with Castille and his future at corner in the NFL. He can be beaten vertically because he lacks the pure speed to keep up down the field. It also hurts him because he gambles too much sometimes and lacks the speed to recover. He may be better suited for safety because of this.
Castille is a talented defensive back but there are some questions about what position he will play at the next level. He is best suited at free safety but he will need to get stronger to play that spot.