Can you imagine us 4 years ago signing a top central mid from the team which had just won the WC? That's what we did with Gilberto. Can you imagine us 4 years ago signing a world class CB from a rival by offering world class wages? That's what we did with Sol Campbell.
Wenger is still top class when it concerns finding top talents, and he is still top class at developing them. Our problems when it has come to team building 'in the barren years' has been to supplement the promising players with top class pros like Sol and Gilberto. When you can integrate the up and coming players with class ones like that - then, yes, I think Wenger's brand of football can still win trophies.
Really, it isn't like 'Wengerball' is a secret; there are plenty of top teams which play pass and move football coupled with quick counter attacking. It just so happens that when Wenger introduced it in England it was new there. 3 or 4 class additions to the squad we have, and I am confident Wenger can win trophies consistently again.
I just have very little trust in the man to get us to that point though! If he this summer makes Vermaelen stay, signs a class RB Sagna replacement, a top class striker, and another class player - then I may come around and think he still has it in him to really go for it. However, last summer he screwed up, and then again in January, so I am not exactly holding my breath here.