Getty Boston Red Sox first baseman Triston Casas Boston Red Sox first baseman Triston Casas is no stranger to trade rumors.   During this past offseason, Casas often heard his name mentioned in potential deals. Along with the discussion over Boston’s efforts to add offensive pieces such as Alex Bregman to the infield, pundits speculated that such moves would make Casas expendable.   For his part, Casas took all of that talk in stride.   “I feel like that’s part of the business of baseball is