Caldwell is a developmental prospect with enticing traits and a need for better fundamentals. He’s a long-strider with the ability to create separation vertically, but his route-running is underdeveloped and he needs tutoring on how best to set up routes. Caldwell’s contested-catch rate is disappointing for a player with his size and ability. Coaching should help create more advantages in that area, but he might need to ratchet up his competitiveness on 50/50 balls, as well. His production at Cincinnati won’t excite, but his NFL Scouting Combine performance shows there could be more upside to unlock, which makes him worthy of a middle-round pick as a backup “Z” receiver.