By Matt Hardy “The FA should only look at English managers if Gareth Southgate steps down.” “No, the FA should be prepared to hire a foreign coach.” Discuss ad nauseam. Now imagine you are Mark Bullingham, the Football Association’s chief executive, possibly (but not certainly) about to have to make an appointment whose success or failure would stand as the defining moment of his leadership, regardless of any other achievements in his tenure at English football’s governing body. Such is the lens through which chief executives in sport are viewed by the public. Bullingham was bumped up into the…