Unfortunately we've had one too many false dawns and some real disappointments. The only measure of success or progress left and acceptable to most fans, is delivering the title.
Thierry was asked that very question in the studio last weekend I think, "what constitutes a successful season for arsenal? would it be a successful season if arsenal finished in the top four and won the FA Cup?"
His answer: "no that would not be a success. success for arsenal should be winning the title, anything less is not good enough"
Sadly Wenget does not share that mentality, along with some fans. The FA Cup is nice and a good trophy to win, but there is no way anyone is going to convince me it's a major trophy. So could this team win the title, ....yes I think so .....with Wenger in charge? ....doubt that very much.
Anyway this particular debate is now redundant, coz he's not going anywhere until "he" decides to.