You're living in the past. People change. Wenger has. If you and others think Wenger, with his policies/decisions in the last 8 years has had realistic ambitions to win silverware then you are on something. Personally, I find it difficult to believe that he is a shit manager. IMO he is either arrogant enough to believe that he can win things while at the same time allowing his best players to leave, or he is making the club subservient to his own principles/beliefs. Either way, his ego has hurt us.
There is a reason why he is no longer a winning manager - an obsession with producing players seems as good a theory to me as anything else.