Wenger's approach has clearly been successful in the past. He does need some strong leaders out on the pitch though and we've been lacking that.
As we fell apart vs Newcastle and Spurs last year, amongst others, he could only sit and watch. It's the players who have to pull themselves together and stop that sort of thing happening.

I see signs of hope though with players like Chesney, TV5 and Wilshere who could be leaders out there and pick us up when it's starting to go against us.