It’s only the second full week of the season, and Grand Junction Rockies manager Jake Opitz is, admittedly, still feeling out many aspects of his squad. But he’s seen enough of a couple of guys already to know that these Rockies, Colorado’s rookie-league affiliate, again have some dudes who can play. Headlining Grand Junction’s early hype list is Colorado’s fourth-round pick this year, outfielder Brenton Doyle.