Jobs will be on the line tomorrow night when the Green Bay Packers close out their exhibition season by hosting Kansas City.  At a news conference this morning, general manager Ted Thompson said players on the bubble can help themselves by coming up big against the Chiefs.  The Packers have to make 22 roster cuts by 5 p-m Saturday to get down to the N-F-L’s regular season limit of 53.  A year ago, safety Chris Banjo and receiver Jeremy Ross earned roster spots by playing strong in their pre-season finale.  Thompson mentions the story of receiver Desmond Howard — who was injured for much of the 1996 pre-season, but made the roster as a kick returner with a 77-yard touchdown return in his second exhibition game. After returning a kickoff for a T-D in Super Bowl-31, Howard remains the only special teams player ever to win the game’s M-V-P award. The Packers and Chiefs play a 6 PM game Thursday night at Lambeau Field.