Yeah I get that, but point is I don't see why that won't carry on happening at the expense of Brahim.
I think that was just the case of us wanting options at left back in case Delph didn't quite work. Against the majority of teams though I reckon Brahim will be preferred on the bench, the way injuries are going though, we might see them both.
As for Brahim playing; we need to find as many opportunities as possible to rest Jesus with Aguero being out, so think he'll get quite a few opportunities to come off the bench and play as a false 9 for City in the next few weeks.