The Phillies could see Double-A Reading catcher Jorge Alfaro and outfielder Roman Quinn join the club before the end of the season, too.
"At this point it's flip a coin," Mackanin said of finding playing time for everybody. "I don't want to sound down about it, but we've got so many guys, and who do I play? I don't know. It's a guessing game.
"But when it comes to something like that, I'm going to play the best defense. Peter Bourjos is hard to take out of the lineup because he provides that defense.