Here are the games we are looking at, and the games Dallas plays.
Week 13, Seattle and Dallas already Scheduled for TNF.....can the be flexed out? Doubt it. Unless it is the SF - Philly game they swap out. Or KC - GB game
Week 14, Patriots - Steelers, and Philly is at Dallas on the SNF game.
Week 15, Chargers - Raiders, Dallas is at Buffalo. I doubt FOX gives u that game. Then you would have Dallas coming off a SNF game then go on the road for a TNF game...it would be like the NFL would do it to screw Dallas though.
Week 16, Saints at Rams, Dallas at Miami on FOX, they may not want to give up that game saw well.
Week 17, Jets at Browns. Dallas hosts Detroit on a Saturday night. That won't change either.
So the only game they can possibly swap out is for the Dallas - Miami game.
I did not look at any other possible matchup those games could be swapped out for. Other than the week 13 scenarios.
Of course what seems like some lame games that could be swapped out for, may be teams in playoff contention. One never really knows.
Also remember the SNF games can be swapped out as well. We could see 2 games swapped out in those weeks.