I think it is in reference to a combination of his crossing and corners over a period of years as apposed to just yesterdays game.
More first time crosses into the box would be helpful, when his team mates are on the move. Very infuriating when he checks back and momentum is lost.
I'd guessed that was probably the case, but it's odd to post something like this immediately after a game and though Brady has taken some **** corners in the past, his crossing has often been quite good.
Brady took an Exocet of a corner against Cardiff in May 2013 which led to McShane scoring. There's one good corner anyway.
I would think Robertson swinging them in at pace from the right side would be a natural. We seem to have more success scoring from the hard low ones than the high soft corners. Quinnie also takes a good corner but is not on much.