Is anyone having any issues with this video? The Dunn eval from the other day is not loading for me at all

Would anyone remember / be able to direct me to which presentation Chris talks about the foot landing across the mid-line of the body and what he does to correct it? Thanks in advance.

Chris, When you divide up your sprinters into the different tiers, do you go mainly on how fast they run or do you add in other metrics, ie their mechanics and ability to learn, etc? Thanks