His biggest problem appears to be confidence. In 2010 he would just burn up the right hand side by fearlessly taking the left back on. Remember when we beat Wolves 5-0 a year or two back? His role in the counter attack for his goal was perfectly executed, knew what he wanted to do and did it well, including a great finish.
Now he seems to doubt himself. Remember last season, the win at Anfield? I remember him doing well to intercept a pass and sprint into the box, where he then scared the shit out of me by not knowing what to do with it. He won a penalty, perhaps fortunately, but for me it summed up the second guessing we've seen from him for nearly 2 years now. I don't want to blame injuries since his most impressive form came after his ankle injury against Rangers, but is it possible his injuries have taken their collective toll slightly and contributed to his poor form?