RENO, Nev. - Nevada football coach Brian Polian has completed his on-field coaching staff with the hiring of Ricky Thomas to coach the Wolf Pack's cornerbacks. Thomas, who was a four-year starter at safety at Alabama, is a veteran coach who spent 15 seasons in the NFL before joining the staff at Georgia State last year. "We are thrilled to add Ricky Thomas to our coaching staff. Ricky is a quality person and he will have a very positive impact on our student-athletes," Polian said. "He brings to us a wealth of football experience from all levels of the game, …