Volquest reacts to Tennessee nearing an agreement with defensive coordinator Jim Knowles  On3Sources: Vols eyeing Penn State’s Knowles as DC  ESPNTennessee expected to hire Jim Knowles: Vols adding proven DC to fix struggles  CBS SportsWhat UW’s DC said about links to Tennessee job  The Seattle TimesReport: Penn State DC Jim Knowles ‘negotiating buyout’ after one season in Happy Valley  WJAC