This is an excerpt from Anatomy of Speed, The by Bill Parisi & Bill Parisi.
As previously mentioned, maximum velocity can be broken down into different phases, such as front- and backside mechanics and transition. While coaches can cue individual elements of max-velocity sprinting based on what an athlete needs to work on, the athlete, however, experiences them all as one connected action. Focus on one cue per sprint and try to keep each cue simple and short. Again, there are endless possibilities and technique refinements that can be made. I’ve listed a few proven max-velocity cues here that I’ve found effective, but you should experiment with what works for you and your athletes, keeping in mind that every situation is unique.