I think where is the issue, SK.
No one here is disputing that Ben made this moves without a plan or a case behind each move. Of course he and his colleagues had their reasons to do, whatever they tried to do. In fact some like you agreed with most of their decisions, didn't you? And it is fine. On the other hand, other fans, experts, etc. like me, thought that this strategy was a bad idea since day 1, and we as Ben, rest our cases as well.
In the end, the entire strategy has not worked out for whatever reason. His responsibility does not end once the the product is on the field, No sir. His responsibility depends on the result of the product, since he is the GM, regardless the strategy he decided to use.