Line backers

In American foot ball there are 3 line backers Lucy (left out side linebacker) Mack (middle linebacker) and randy (right out side line backer). The outside line backers fill the holes between the defensive tackles and the defensive ends. Mack finders who ever he can find with the ball and tackle them. The outside line backers also have the responsibility of tackling the tight ends,the line backers can also intercept a pass and runs the ball!