The other point to make clear is sprinters generally need to limit and therefor prioritize the number of lifts.
I witnessed Charlie working with tons of people at every level in sprinting for so many different sports and it always amazed me how simple he kept things.
I need to post my lifting in the very beginning year and show people with comments what my development looked like .
I can’t comment on Angella or the others but the pattern is the same and once the ground work has been laid more options exist.
The main emphasis for increasing speed will not be determined by squatting. Lifting in sprinting is supplementary first and foremost.
( there is a better way to say this but hopefully you understand my point)