With the pre-season schedule just beginning, some teams have had to adjust their snappers.  Bears veteran Pat Mannelly has been sidelined with a minor hip injury and, as a precautionary move, the Bears signed J.J. Milan to fill-in.  Milan has prior camp experience with the Colts and Raiders.  The Chiefs, who have made a number of moves at the snapping position in just the last few months, reversed a recent transaction and brought back Thomas Gafford.  Gafford had been waived recently, leaving Tanner Purdum as the only snapper on the roster, but the Chiefs let go of Purdum yesterday and brought Gafford back.