Indeed, and he was up against it from the start, the whole team was unbalanced and missing key players. I think people are just trying to pick holes in his game to justify Moyes not selecting him. There's little evidence to suggest he has major problems defensively, that might change the more we see him, but up to now he's dealt with everything he's come up against.
Stinger made a good point, given his style of play, he could also pin good wingers back and keep them occupied, negating there attacking game, similar to what Maicon and Ramos did during the World cup. And if you want to get the best out of Bilyaletdinov, I think Coleman would be the man to really help him out and create space for him.