Getty Aaron Jones Sr. #33 of the Minnesota Vikings looks on against the Seattle Seahawks. The Kansas City Chiefs are expected to address their backfield when the NFL season starts anew this month, and the perfect addition may have just fallen into their lap. The team’s backfield struggled last season, one of the major impediments as their offense stalled and the Chiefs missed the playoffs for the first time in more than a decade. While some insiders predict the Chiefs will address the position