 In 2005, Patterson rejoined the Yankees and worked as pitching coach for Triple-A Columbus Clippers, being reassigned to the GCL Yankees from 2006 to 2007.Patterson had asked for the assignment to work in the Gulf Coast minor league farm team, where there are no overnight trips and the schedule allowed him to be home by the late afternoon.At that time, Patterson decided he had to stay home to be close to his 7-year-old son, who had been diagnosed with Tourette syndrome, a condition of the nervous system characterized by involuntary, uncontrolled movements and vocalizations called "tics".