 Campbell has been praised in recent times for his negotiation skills, with particular reference to the signing of Simon Donnelly at the start of the 2006–07 season.However, despite a decent start, a string of poor results saw Thistle languishing in the bottom half of the table and his tenure was ended on 27 March 2007.In the summer of 2007, Campbell was appointed manager of just-relegated Ross County, with the proviso that he would have only one chance at earning the club promotion, and would be sacked if he was unsuccessful.