Despite dipping in the farm rankings in the wake of a slough of win-now trades, the Astros have consistently gotten meaningful contributions from rookies throughout their recent run of success. The club had a rookie of the year candidate yet again last season in Luis Garcia, and could well be in that mix again this year with projected starting shortstop Jeremy Peña. The path to playing time isn’t quite as clear for fellow top prospects Korey Lee and Pedro Leon, but it’s also reasonable to expect that fans will see them take the field for the big club at some point this year as well.