My thoughts exactly - and I like the point re the higher backline.
The problem is that while I think Wenger's tactics have evolved with Walcott - his risk taking/blind spot re depending on players' injuries haven't.
Do you think that we should be looking to buy an attacking player with pace in January? I'm beginning to think so - even if another injury prone player - Welbeck - might be back by then. Because IMO its not even Walcott's goals that are the most important - its the spaces that direct pace provides. I'm fond of Giroud, but its too easy for well-organised physical pressing teams to nullify us when he is our starting striker.