So Mertesacker and Koscielny are not good, but Vermaelen (who can't get in the team ahead of them) is?
Never said that they were not good, they've had a good season which has kept Vermaelen out the squad. Sometimes for a player things don't their way, and for Arsenal it 's difficult since his injuries. But undoubtedly he has the talent and skill and will prove it under Van Gaal's tenure.
