The Shell Drill is an important basketball skill used to teach young players the fundamentals of team defense. By understanding and mastering the principles of the drill, you can improve your defensive intensity and help your team win games. Learn how to execute this challenging drill with these tips and tricks from LSU Assistant Coach Bob Starkey. Like most coaches, Coach Starkey uses shell drill for basketball to teach the basics of his defensive philosophy as well as how to defend certain movements and actions. Using the shell he illustrates how to adjust for his opponent’s offensive tendencies and how he builds it into his scouting reports and game preparation.