I don't think this has changed though. Wenger has always wanted us to play football in a certain way. Back in the day it didn't matter though because we had better players than everyone else and we were fitter than everyone else. Other teams could do what they liked and most of the time it didn't matter. Now we're still (contrary to popular belief on here) better than most teams but the gap is less and there are better teams around. We do on occasion need to change it and be more pragmatic and I do think one of Wenger's failings is a stubborn sticking to his principles regardless.