Thing with Cahill is he has proved that he can play at the top level with England while he was still at Bolton. Get all the points being made about Morrison but right now, I'm not sure if it is wise to take a risk in purchasing a midfielder like Morrison to solve our creativity problems. As you said, he could turn out to be a great signing or just another Sidwell. What we need right now is a creative midfielder who has proven himself at a much higher level than Morrison has, someone like Moutinho, Modric etc.