Wells (0-2) took the loss after allowing two runs on five hits over 2.1 innings in Thursday's 6-4 loss to the A's.
Wells appeared to right the ship after a dreadful beginning of the season, but he was pulled early Thursday for the second time in 11 days. He's also suffering from control issues with six walks across eight innings this season. Wells figures to remain in the rotation for now with Dean Kremer (oblique) and John Means (elbow) not expected back anytime soon.