Tom Brady recently paid Manchester City a visit as the NFL legend attempts to make a success of things in his role as minority owner and chairman at Birmingham. The 46-year-old has endured a difficult time in the Midlands so far, watching Birmingham drop into 17th in the Championship after surprisingly replacing John Eustace with Wayne Rooney. Therefore, the American’s trip to Manchester City makes sense as he aims to find out what makes a successful football club – interestingly, the Californian was blown away by one thing in particular. So, what impressed Tom Brady on his visit to Manchester…