Again I am sure you are aware, but just in case for others, the buck didn't stop with the Coach. The Executives, Irvine (the Chairman), Cullen (the CEO) and Mooney (the Football Manager) plus Noakes (the Head Trainer) and Elkin (the Trainer) were all also suspended by the NRL, some were lifetime suspensions.
Personally I find SFlanagan to be someone who has confidence in his own abilities, but I don't find him to be overly arrogant as such. All coaches have to have a touch but if you want top shelf arrogance, try Bellamy, he's right up there (and some will say he has earnt the right).
Always a Bulldog