PARRISH ALFORD OXFORD No football season is complete without subterfuge. If you scratch your head and wonder where you first heard the name Dawson Knox, it might have been after Ole Miss quarterback Chad Kelly tore up his knee last November. In the days that followed Rebels coach Hugh Freeze, trying to keep his plans private as all coaches do, unveiled a surprising list of candidates who could possibly play quarterback for Ole Miss at Texas A&M. Lots of signs pointed to Shea Patterson, the freshman whose career as the No.