Once again if you would read what I say, there is no relation on their own. Within the context of a complete program, there may be indications of improvements in sprint speed because of some other factor, but that would only be really an indicator because of everything else that is already being done within such a program and would be specific to both the athlete and the program and likely have minimal crossover to other athletes. Reading comprehension is key.
I understand very well what you are saying. Maybe better question would be wich is the most specific lift for sprinting? I guess many would say squat, others split squat or one leg squat, maybe power clean, deadlift. For example I would choose deadlift if no problems with a back b/c it involves all major muscle groups at once. It’s great that you can drop a bar as well if you need to. I know you call Barry a clown, but he is not Davan. Don’t you believe that you could sprint at same level or even faster using deadlift as a major lift without any additional lifts? I know it’s hard to believe nor I want you to believe, just saying