Phil the New Phlebotomy Tech is processing a specimen for chemistry. After placing the tube into the centrifuge, allowing the tube to spin for the correct amount of time, and waiting for the centrifuge to come to a complete stop, he removes the tube. Phil then applies a label with the patient’s name and identification number onto an empty tube. He places the empty tube in front of the centrifuged tube, and using a pipette; Phil carefully aspirates serum (avoiding RBCs) and transfers it to the empty tube. What (if anything) did Phil do wrong?