I'm not really sure that matters, he just pointed out some poor tactical play by us, whether he managed 10 clubs and won 100 trophies or hasn't managed is kinda irrelevant.
Tactics and organisation are important in football and if your tactics are poor and you play as individuals you'll struggle.
Wenger has been found tactically wanting over the years and this was just an example of poor tactics, I don't think we drill the players tactically and the players we buy don't seem to be good enough to be tactically aware and adapt off their own back.