I think he has enough faith in him that he doesn't have to give him the top top talent in order to have a system full of promising arms. So far he's been proven right. I think recent history has shown that it's much harder to mold position players than arms.
Elias must have a great deal of faith in him, hence the promotion. Respected and competent decision makers don't elevate someone to a position of great importance without having the faith in them to do a great job.