Australia has cut their sprint program and had stopped looking for sprinters after Shirvo/Johnson. Now only a few are funded.
Also, Combest was looked at as a great 60m hope, whereas Matt Bruno was looked at as the 100m hope. Pickering and lemaitre are the most famous from a young age along with Shirvo. Now Guliyev is in the mix. Watch out for fabio cerutti too.
Tyson gay ran 10.6 in high school, and runs 9.7 now. Imagine if every white kid who ran 10.6 went on to do pro and d1 track. Most are pushed away, discouraged, or go onto a career or education. Culture is 90% of the problem.