Caleb Campbell is a huge safety at 6’2″, 229 pounds and he runs a 4.55 40.  Campbell delivers hard hits in the running game so he is likely more of a strong safety.  Campbell played in 43 games (38 starts) at Army and he finished with 307 tackles, 10 tackles for a loss, forced 4 fumbles, broke up 7 passes and he intercepted 6 passes.  Campbell will probably make the Lions because he will help out on special teams.