Good Luck With That
Yes, Whittaker's is very bad, but somehow she managed to run faster than all the high school girls with good form. I wonder how fast Whittaker could go with better form.
For those who don't know, Whittaker's father was a former top 800 runner himself as well as being a track coach and a physical therapist. Of all people he understands what's bad about her form, so I'm also surprised he didn't try to change it, but maybe there are some biomechanical issues that she has that don't allow her to change.