Feed him and he will score more often than not, if he doesn't get fed, he won't. When he's not scoring people hate his work rate, but its the same level of work rate as when he's banging in the goals. His match fitness isn't great and he is still getting back up to speed from a severe injury, it takes time and your mentality is cautious, unless your Vaughan..
Osman and Hibbert have always had more endeavour, but get criticised for ability. Nobody's perfect, you have to work with what you have and play to your strengths. There is virtually no striker that can compare to Yak's goal return, especially when you consider the clubs he was banging them in for, before us I mean.