Silva and Nasri have been gash, the pace Spurs are showing is what looks most dangerous, but not used much yet.
Nasri and Silva just don't play "the wings", I haven't seen either take the ball and run down the wing yet, Silva's not taken anyone on, one half decent pass, playing slowly, putting in next to no effort.
City's attack seems to be dying lately from the lack of drive from midfield to the box, for several games its been knock it to Aguero and see what he can do. When Silva had his shot you see from the replay he wasn't killing himself to get forward to support Aguero, he was barely jogging, same with Nasri only Aguero holding it for so long let him get there. Then Aguero made a great run into the middle of the box, in space, EASY pass and instead Silva took a lame shot.
I'd be going mental if I was Aguero, killing himself chasing after dead ends, no support and when you finally get it someone nicks the shot, happening a lot to him in the past couple games.
Spurs don't look much better, crosses haven't found their target, VDV keeps dropping stupidly deep to get the ball only to pass it straight back, little from him upfront and when he gets a chance to shoot rather than create space or find a better pass he blasts it straight at defenders twice.
Worst thing is Mancini doing nothing about it, Nasri and Silva in a "big" game again, and again both looking crap. almost two months since City looked impressive and Mancini hasn't managed to change a thing in that time they've got worse game after game. Despite utter lack of distinctive wingers(nasri/Silva both unwilling to "run" the wing nor stay in one place) he still won't give Johnson a go. Nasri + Silva against anyone but dross obviously doesn't work, so he's done it again.
Honestly, you could easily put Zabaleta in at right back and push Richards up to right wing.