Center: Phil Costa, Travis Frederick, Ryan Cook, Kevin Kowalski
Grade: B-; Costa is a passable center, when he’s not injured. The Cowboys drafted Frederick in the first round to be a starter at either center or guard. Although the Cowboys might consider playing the rookie and Costa side-by-side, it might be a better choice to have Costa in a back-up role. Cook did a decent job last season after coming over from Miami to fill-in at center, a position he had never actually played in the NFL. And Kowalski is simply a hard worker who has shown enough during training camps and pre-season play to stay on. All-in all, the Cowboys have more options at center than they have in the past few seasons.