I don't. Bearing in mind there's no such thing as an easy slip catch, he dropped two regulation ones in the first test and he dropped at least two regulation ones against NZ earlier in the year. He's also taken catches, to be fair to him, but the ones he's dropped have been the kind really good slippers hardly ever drop.
I'd compare that to Cook, who used to be a bit of a liability in the slips. He's turned himself into a reliable slip who very very rarely drops the regulation ones. you can't search cricinfo by catches, I don't think, but four in a year when they came straight at you at a good height - you'd need to take a few blinders to make up for that.