faster = sprinters
quicker = same as faster
explosive = oly lifters
NFL athletes have a combination of all three abilites that neither oly lifters and sprinters have. sprinters may be straight ahead faster for 100 m. can a sprinter beat a WR in a 40 yard dash? No. Are they quicker, definetly not.
Oly lifters would get destroyed by olinemen and dlinemen. There explosiveness is concentrated in a single movement and thats it. Cmon man.