Yairo Muñoz was acquired by the St. Louis Cardinals last offseason in the trade that sent Stephen Piscotty to Oakland for Muñoz and fellow prospect Max Schrock. Muñoz was viewed as the better piece in the return and while Schrock has a good hit tool, Muñoz was definitely the better piece.
The plan may not have been originally for Muñoz to start the season with the Major League team, but after a great spring (.376/.423/.625), Muñoz left Jupiter with a 25 man roster spot. Even without a real role, the Piscotty trade looked great at the time.