I don't see what's so strange about it. Clearly just making the point he feels the player is good enough to play anywhere if needs must.
We all know he's a quality player, I wouldn't expect Man U to ship Ferdinand to left back though would you.
If they had enough injury problems, why not? Making a mountain out of a molehill tbh.
Not really, it's best we have two players for each position, though he obviously sees Charlie as a left back, I'm saying that if our first choice left back got injured then it wouldn't be ideal for this to mean Coloccini has to go left back and then weaken our central defence.