Watch as Coach Kirby Smart explains and shows practice and game video of the Bubble Drill. This a good-on-good competitive drill without offensive and defensive lineman. Defensively the drill works on defending the perimeter screens, drop back passing, and trips to the boundary. This is also a half-line drill working on defensing perimeter and drop back pass plays while in man coverage. Coach points out they want the middle safety to read the offensive tackle to determine run or pass. On a pass read the safety defends the middle of the field and on a run read, he will play flat and defend the RPO slant.