Is it just me or are those two not clicking? Kristi Caple has made a seamless transition in the morning but Tracy and Bill don't work well together, I almost get the feeling that he doesn't like Tracy, he seems very uncomfortable with her. Two weeks ago they had Jennifer Jordan fill in for Tracy and I thought she and Bill were a much better fit.
Give it time.
Bill worked with Stacey Bell for over 10 years, and with McCool for a couple of months. Give them a chance to get their groove.