I assumed he meant Kos was one of the two quality CB's...IMO everyone fit he's the automatic starter and Per is on the bench.
Yeah Per isn't that good for you.
The problem is, he would be very good if you could bring on a special team like in America. That way when you have a free kick or corner on comes the big man.
His problem is you like to play a high line, offside trap type of game. This is not what Per is good at, and is always one ball over the top from looking a bit slow. For example, see Welbeck running past him last weekend. If you played a deeper defence then he could really be a rock to base your team around.
But you won't, so he isn't. More worrying most people knew this before you signed him, so i don't know what your scout put in his report. "International defender, going cheap" would be my guess.
CC: You cannot blame injuries for your predicament. Especially against a team with just as many as you. Its your overall squad management. Who decided to sell Nasri and Fab in the last min, who would not put up the cash for a decent CB last Jan? Its can't ALL be Wenger. He has been good for your club.