If you can't back heel when 7-0 down and the game's lost when can you??

Don't do it when it's a tight game I say!!
Fair enough if you think he is average, he's obviously neither **** or world class but does a job. To an extent it's like when Milner is in the City team. Allows the team unit to function much better than pedestrians with the odd moment of brilliance like Jovetic.
How many times did Fergie play the likes of Park in the big games? and he's nowhere near as technically gifted as Willian.