what position,how to improve my speed

Question
hey coach
what position should i play? im 5'7, 135 lbs and im very fast and can catch great and i can also run with alot of power. my last coach told me for as small as i am i run like a full back instead of a running back. But i dont want to become a running back or a fullback. i really like defense the most because hitting someone is probaly my favorite part about football. I love catching the ball which like i said im happen to be pretty good at. About my speed i run about a 4.7 in my 40 and about 2.61 in my 20 so i was wondering if u could tell me in plyometric workouts that will improve my speed a lot. Im about to be a sophmore and one of my main goals is to be the number 1 player on the team. Coach has told me im goin to be gettin some playin time but i want to be starting and i want to be the best this school has ever seen. so i was just wondering if you could help me out with my decision on my position and if you could possibly improve my speed. thank you for listening

Answer
Dear Brent Laube,
If you like to hit on defense, I say play linebacker. Now lets talk about plyometrics. Plyometrics if performed incorrectly can increase the risk of injury. If you want to do this type of work out you must have well trained professional to supervise it.

If I were you I would talk to your coach and see what he has to say about it. I would also talk to your parents to see if you can join a gym. Find one that has qualified personnel that can supervise you and train you.

Let me know if you still would like some tips on how to play linebacker.

Your friend, Coach Louis