Donnie Murphy is off to Texas, creating playing time at third base and second base.
Slowed by injury, Cubs infielder Mike Olt is hoping to squeeze into the platoon at third base.
The youngsters have been sent back down, giving us a better idea of what lies ahead.
Donnie Murphy homered to cap a four-run rally in the seventh inning and the Chicago Cubs connected four times Wednesday to beat the Miami Marlins 9-7.
Donnie Murphy hit a tiebreaking three-run shot in the ninth inning for his second homer of the game, lifting the Chicago Cubs to a 5-2 win over the Philadelphia Phillies on Wednesday night.
Darin Ruf and Chase Utley sparked a three-run fifth inning to lift the Philadelphia Phillies to a 9-8 win over the Chicago Cubs on Tuesday night.
Hanley Ramirez homered for the third game in a row, Mark Buehrle pitched eight innings for his first victory with Miami and the Marlins beat the slumping Chicago Cubs 9-1 on Wednesday night.