The St. Louis Cardinals are going to be an interesting team to watch at the trade deadline. Their strategy is unclear, but they are in contention. They could potentially add to their roster, sell, stand pat, or mix buying and selling together. But how they play in the month of July will ultimately be the deciding factor. They attempted to trade Nolan Arenado last offseason, but he nixed a trade to the Houston Astros, and the Boston Red Sox signed Alex Bregman after showing prior interest in Arenado. Mark Feinsand of MLB.com proposed the idea of St. Louis sending Arenado to the Detroit Tigers. “There are a number of teams in the market for a third baseman — namely the Yankees and Tigers. Would