(AP Photo/Ed Zurga, File)File In this Aug. 11, 2009, file photo, Dallas Cowboys owner Jerry Jones, left, and Kansas City Chiefs chairman Clark Hunt talk during an NFL football game in Kansas City, Mo. Hunt's late father, Lamar Hunt, dreamed up the Preston Road Trophy in the mid1990s to give to the winning side on the rare occasions that Dallas plays Kansas City..Departure of longtime stars Harrison and Hampton leave chance for younger faces to shine, though it won be easy. Rookie RB Bell out indefinitely with midfoot sprain, leaving mixture of career backups to take his place. League topranked defense needs to produce more splash plays for team that finished minus10 in giveaway/takeaway margin in 2012.CLEVELAND BROWNS (511)NEW FACES: OLB Paul Kruger, DE Desmond Bryant, WR Davone Bess, OLB Barkevious Mingo, TE Gary Barnidge, WR David Nelson, CB Leon McFadden, coach Rob Chudzinski, offensive coordinator Norv Turner.KEY LOSSES: K Phil Dawson, WR/KR Josh Cribbs, TE Benjamin Watson, CB