Arsenal were successful under legendary manager George Graham in the late 1980s and early 1990s, but there was one huge transfer mistake under his watch. Graham became one of the most influential figures in Arsenal’s history as he won two league titles and an FA Cup as a manager of the side he also won a historic title with as a player. The Scot managed some Arsenal icons during his time at the club, including Paul Merson and Alan Smith, but he had a forward in his ranks who would go on to outdo them in his career. Andy Cole is one of the top scorers in the history of the Premier League, and o…