On July 31, 2014, the Astros dealt pitcher Jarred Cosart (along with utility infielder Enrique Hernandez and outfield prospect Austin Wates) to the Miami Marlins. In return, the Astros got outfielder Jake Marisnick, minor league third baseman Colin Moran, a low-level pitching prospect named Francis Martes, and a competitive balance pick in the 2015 draft. The Astros would use the pick, the 37th overall selection, on Daz Cameron. He was a speedy high school outfielder and son of former Major Leaguer, Mike Cameron.
It is not the best trade in franchise history* but in terms of significance, it is arguably the most important.