Sanogo may just not be the social type? He is always quiet and isn't messing around/joking with others like Giroud. I just don't think he has joined the 'Arsenal clique' that people like Chambers and Campbell have. Debuchy is currently in the transition, as you can see he has made some strong friends (mostly french) but doesn't join in celebrations etc
I think Alexis didn't pass to Sanogo much because he was constantly offside this game, and Alexis didn't have an opportunity for a good through ball (like Sanogo did for him).
Let's be honest, this City team will never be seen again, they really had to scrape the bottom of the barrel to bring on people like Sinclair. Hope we keep this momentum up but this game doesn't prove much. One thing I do think will happen is that Chambers is converted to CDM so that he can play a triangle with Mert/Kosc, as he has the pace and passing quality to really fill that role. Him and Debuchy just ran the show today.