On Wednesday, Gibson played Jason Kubel in right and Gerardo Parra in left.
On Thursday, Gibson switched Kubel and Parra.
Parra, who won a Gold Glove Award last year, is regarded as the better defender of the two.
"[The Braves] have a lot of left-handed hitters in there today and [Josh] Collmenter is on the mound," Gibson said when asked what led to his decision to flip the outfielders. "I just thought I'd rather have Parra in right tonight -- they'll probably hit them all to left for all I know. It's just the thought process; if they hit the ball in a corner that way, Parra has a stronger arm to maybe cut down a triple."
Kubel said he doesn't really have a preference, but allowed that he was "a tad" more comfortable in left than he is in right.