Worthy topic for an article. Some might dismiss RBIs as a lucky stat, because a batter is fortunate to get up with men on base... he still has to drive them in -- something Boston has struggled with all year. Coming through in the clutch may be a myth to some observers, but ballplayers always know there are certain guys more reliable than other stars (just like a reliever who can get the last three outs in the 9th).
The focus on offense is fair, though Mayer's potential impact on the parent club should be more on stabilizing an inconsistent defense.
Marcelo isn't going to bump Bregman, Story or Campbell, unless the latter moves to the outfield, which is also where Anthony is headed (we all like Campbell's bat, and we all know Mayer has a superior glove).
Some major roster shuffling will have to happen before The Big Three of Campbell, Anthony and Mayer are starting in The Show together.