The Green Bay Packers have displayed they can play winning football in stretches. Their problem has been making those stretches last long enough. That worry now has ugly numbers attached to it. NFL analyst Warren Sharp pointed out on X on Oct. 2 that the Packers have been outscored 57-20 in the second half through three games, producing a minus-37 second-half point differential that ranks last in the NFL. Sharp also noted Green Bay leads the lea…