Not in the slightest. You disagree?
In regards to mobility the Kolarov comparison is a bit harsh on him, as his athleticism certainly helps him be a lot more mobile that Kolarov. For whats its worth though, i'm not a massive fan, yes he's an improvement on our current options but that's not exactly difficult.
Also don't mean that to sound harsh on Sagna and particularly Zabaleta whom have both had very good careers.