Ryles told us about his involvement in recruitment a few weeks ago (from 1m 45s):
"...and especially for our list management group, they've been very busy. So they do most of the work and I just give them a hand."
So there you go. There is still a committee of people that is responsible for management of the roster, and the coach has some input into that. Just like under the previous coach. If you've seen the Dawn of the Dolphins doco on Stan you will know that it even works this way when Wayne Bennett is the head coach, though you'd assume he has earnt the right to have more input than the majority of other coaches in the NRL.