Centro still has the 9th best performance, 7th hs performer at the 2M with 8:41.
I would assume that his father had a lot to do with his reaching that level.
He was then coached at Oregon by Andy Powell to a World bronze in the 1500m in 2011. If you think Powell is just dependent on Salazar, then recall a few years ago when Salazar asked Powell for tips on sharpening his athletes for championships after Oregon had enormous numbers of guys run sub 3:40 at the end of the season.
In recent years, while still with Salazar's group, Centro also had advice from his father, growing to become co-coach or more than that before the gold medal, before going to Washington to train with his father exclusively.
So, you can't given Salazar the credit for originally developing him to world champs level, and not all the credit for the gold, but plenty of credit is deserved.