This is called the Side to Side drill for recievers to improve their ability to catch a football. This drill starts with two players standing on the goal line facing each other and about five yards apart. The reciever should in a stance with legs abducted to shoulder width apart. This drill works on concentration of the football while moving. Your not always going to get a perfect pass while playing football, you need to be prepared to catch a ball in all different angles while moving.