Diaby as he's younger and in my oppinion is technically better than Toure and would therefore have more room to improve.
I agree with you in a way, but i would personally would pick Yaya toure over Diaby as i think Yaya is more effective in games. Diaby sorts of fades away in games, but no doubt he will be a good player if he can stay uninjured to fufill his true potential.
clearly the guy who wrote this article knows nothing about football, nobody should waste their time arguing with him, he's too stupid to take it in.
Arteta and Diaby are different players, Arteta is neat and tidy, Diaby is more of a dribbler. Diaby has that natural skill of getting past players easily, he should be able to do what Yaya Toure does but he isn't as strong. My preferred future Arsenal midfield would be Wilshere Diaby and Frimpong - I am sure you all know my views on Song.
What are your views on Song? I thought his performance against Dortmund was one of the best I've ever seen from a player in his position.