Listening to interviews with JG and various players, especially as a lot of our goals have come from set pieces recently, it definitely appears as though they work a lot on these routines in training. From memory, we tend to go for the flick on at the near post or cross it high and look for the knock-down (Minihan's goal at Wrexham is a good example). It can give you a considerable advantage if they're well-executed, and when it all comes together it is extremely effective....England at the World Cup, anyone?