The Astros have built a juggernaut of a franchise. Not only is the major league team one of the best in the league (despite some recent struggles), but the farm system is one of the top systems in baseball. There are plenty of high upside prospects ranked in the top 100 across different publications. But what has made this season even more special is the prospects, who were relatively unknown heading into 2018, have know made their names known. Let’s take a look at a few guys who were unheralded heading into 2018, but put together some great seasons.