Football players wearing helmets practice defensive moves while their coach stands by ready to blow his whistle .
We doubt that a group of high school football players are practicing in front of their coach and a scout .
We doubt that a group of high school football players are practicing in front of their coach and a scout .
It is probably the case that a group of high school football players are practicing in front of their coach and a scout .
A group of high school football players are practicing in front of their coach and a scout .