I just wanted to comment on the Paul Hallam reference to Olivia.
When I was in Oz, Paul brought her to Nanny’s track for me to see along with another un-named girl (he wasn’t allowed to attend my seminars).
While Olivia was good, this other girl showed me more raw ability and improved with every suggestion in each run.
During a water break,I asked Paul Nancarraw who she was and he said it was PH’s step-daughter, Jascinta. Paul H had made no reference to her at all- beyond no favoritism.
At the end of 3 sessions in a week, Jascinta had improved beyond recognition and, as you know went on to do well as a finallist in 100mH at the world youth games. Olivia did well too IMO but it’s tougher in the open sprints.
I’ve lost track of what’s happened since.
My feeling (and personal experience) is that athletes shouldn’t be passed on without a very good reason and support from centers should be brough to the coach who developed them and already knows them best. This is a center-based idea rather than an athlete based free-for-all.