The way I see it the board have brought in Ennis, Mary, Barrett, Wolford, Nathan Brown (coach), Caylo and new unnamed defence guy for a reason. They recognise that BA is a very good man manager and has a proven track record to turn fringe NRL players into great players. However they see no reason why fresh eyes can't deliver greater success. From a corporate POV, it doesn't look to me that they necessarily have a succession plan. Simply put the performance of the team doesn't rest just with just one guy. It's junior development, sports science, training regimens, game day tactics etc etc and anyone who just peers through the keyhole and only sees "9 years" is not seeing the wood for the trees.
There will be a time when the board make change or the coach wishes to move on, but "winning the comp" cannot be the sole metric when reviewing recent performances and deciding who gets the new job.