The Lions didn’t have any need to keep WR Mike Williams or QB Josh McCown after they drafted Drew Stanton and Calvin Johnson so they traded them to the Raiders for a 4th round pick (#105).  That pick turned out to be used on cornerback A.J. Davis of North Carolina State.  This was a good move for the Lions as they got rid of what they didn’t need and addressed an area of weakness with the addition of A.J. Davis.