The phases of running never seemed to be a topic of discussion when it came time for test week throughout my football career. We ran 40-yard dashes every year, yet—maybe it was because I was an offensive lineman—we got skipped over when it came time to learn proper sprinting mechanics. I can’t remember one time when the coaches critiqued us on our form while running the all-important 40-yard dash, other than a “pump your arms” cue or the always helpful…