If you looked in the Daily Racing Form lately, and briefly looked at the ads , you may have seen an ad something like this :
Some service selling Trainer Stats says , in bold, as an advertising hook, something like this:
"HORSE'S
DON'T WIN RACES,
TRAINERS DO!!!!!"
LMFAO!!! REALLY?!?!?

When the gate pops, I can't recall seeing any of these gentleman battling for position.
Have you seen some the shape of these chaps? If they can bend over to tie their shoes without breathing hard , it looks to be an accomplishment.
RUN , Trainer, Run!!....get over that finish line!!!.., the horse is just window dressing for the
REAL talent of the furlongs, the trainers . LOL