Over the past few weeks, we've taken a closer look at veteran players such as David Ortiz, Matt Holliday, and Adrian Beltre to determine how much gas is left in their respective tanks and whether or not they're still capable of being the same fantasy studs that we've come to know over the past several years. Players who, in terms of their MLB careers, are in the autumn of the year as the late, great Frank Sinatra might say. However, this column's intent isn't to focus solely on the old guard who would be ideal candidates to endorse a product such as this. Now that it's just about two months (or almost one-third of the way) into the 2015 regular season, the sample size has become significant enough to be able to identify the players who have exhibited significant changes in skills or approach that could lead to sustainable changes in performance and production moving forward. That brings us to Mike Moustakas.