Being emotional and being introverted aren't related. The only difference between an introvert and extrovert is that one processes thoughts internally and the other externally. Introverts figuring things out by thinking about them and extroverts figuring things out by talking about it. But an introvert is no more or less likely to get emotional than an extrovert. If that introvert isn't in command of his emotions, it's going to come out just as often and just as hard as it would with an extrovert. And introverts are often super talkative. My point in all of this is that yeah, Fuente is an introvert, but that has nothing to do with his choice of being calm on the sideline, of deciding not to provide information about the program, etc. Those are just strategic/tactical decisions he makes because he thinks, rightly or wrongly, its going to get the results he wants.