No. No we didn't.
How did we not? He obviously didn't think any of the centre backs could play at left back while keeping the rest of the team the same or I'm guessing he would have done it considering Colback was supposed to play there.
We could have just played somebody at left back and kept the same system.
I'm guessing he would have if there was someone capable of playing there. I could be wrong mind.
Aarons, Mbemba, one of the kids, even Gouffran could have done a job there. Needlessly disrupting the entire team and system just to accommodate one position is foolish.