Here's some surprising, but good news:
Elliot Jones of Great Britain, ran 10.04 (1.9w) in Stratford today.
His previous PB was 10.20. He had also run a windy 9.93 (3.7w) in June.
Here's the race. Jones is in lane 2.
I wasn't able to read the article without subscribing, but I'm guessing this very recent, like within the week?? Could have an impact on his performance at worlds.
Australian champion sprinter splits with long-time coach
Google A I says this.
Australian champion sprinter splits with long-time coach