People just need to stop with the "Tyron should be the swing tackle" argument. When healthy, Tyron will play. Why? Because he's still the best OT on the team. You don't sit your best player just because he MIGHT get hurt. If he's healthy, he's one of the top 2-3 OT's in the entire NFL. If he get's hurt, you deal with it.
His restructured contract is incentive based, where he gets docked pay if he does get hurt. But Tyron will start. He will either start at LT or RT. Tyler will start. He will either start at LT or LG. The undrafted Terence Steele will either start at RT, or be the swing tackle. There is NO SCENARIO at all where Tyron Smith is the swing tackle. Either he's healthy and starts, or he's hurt, and the younger guys play. If Tyron gets hurt, then the Cowboys have 4 players on the roster who can fill in at the swing tackle position - Waletzko, Ball, Edoga and Richards. All but Waletzko will get time at both Guard and Tackle during training camp.