Absolutely, if the board appoints a rookie and it does not work, all hell will break loose and they will be solely responsible! If the go with an experienced coach, at least they can say we got the best available person to coach the Dragons.
They put themselves in a difficult position with the plan to appoint Ryles, if it didn't work the board would be responsible and they signed a contract for 4 or 5 years - further making their decision look terrible with the benefit of hindsight.
The Board need to go with the most qualified person available, this is governance 1.01. At this stage its Flanno.