What Can I do at the Gym to Improve my Speed,Strength and Power for Football??

What can I do at the gym to Improve my football game?

I play running back mostly but i also play wide reciever,safety and cornerback.

What Can I do at the Gym to Improve my Speed,Strength and Power for Football??nba ballers

Plyometrics for agility

What Can I do at the Gym to Improve my Speed,Strength and Power for Football??nba draft lottery ,nba teams

weights
squats. you will get more out of squats than anything