"I've tried to hold to that if I could," Gibson said before Friday's series opener opposing the Dodgers. "At the same time, I want to give people looks."
So if a couple of the manager's moves in Thursday's 10-9 win over the in-the-race Rockies seemed questionable, now you know why:
Pinch-hitting left-handed hitter Brandon Allen against left-handed hurler Jeff Francis in the fourth? Allen, the club's most Major League-ready power-hitting prospect, has batted .115 (3-for-26) in his brief big league, stints but he will need to learn sometime.
Calling on right-handed reliever Blaine Boyer to pitch to left-handed hitting slugger Carlos Gonzalez with the bases loaded and two outs in the seventh?
"I want to put people in situations that they're not used to," Gibson said. "They deserve to prove what they can do."
Gonzalez launched a grand slam.
With the out-of-the-race Dodgers in town, that meant two changes in the middle of the diamond -- reserve Tony Abreu started at shortstop in place of Stephen Drew and John Hester supplanted starter Miguel Montero behind the plate.