BIOGRAPHY: Four-year starter at both outside and middle linebacker. All-Conference selection the past two years. Senior-year totals included 141/12.5/2 after 165 tackles as a junior when he led the conference.
POSITIVES: High-motor defender with marginal size and speed for the next level. Plays with quickness, flashes on the scene, and sacrifices his body to make the play. Sniffs out the ball in run defense, explodes up the field filling gaps, and wraps up when tackling. Aggressive in all aspects of the game.
NEGATIVES: Does not always play within himself and pursues the action too aggressively at times. Slow shedding blocks and handled at the point by opponents.
ANALYSIS: Castelo is an intense defender with a special teams mentality who excels in pursuit of the action. Could find a home in a one-gap system where he is free to roam.