Wenger was left pleased with last summer's transfer business.
"Well let's not forget that at Sunderland we started in midfield with Wilshere, Ramsey, Flamini and Ozil. On top of that, who did not play? Cazorla, Arteta, Chamberlain, Podolski, Rosicky," Wenger told arsenal.com.
"So you realise football is not just about adding more players together. You have to give them a chance to play, you have to give a chance to players like Ramsey and Chamberlain at some point. One year ago, people were questioning Ramsey. But why is he where he is today? Because we kept faith in him and gave him a chance, so you have to find the right balance between developing players and adding more quality."
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