Of the 12 teams that made the playoffs in 2014, only four of those teams had a strength of schedule over .500. That means the other eight playoff teams got into the postseason in due part to playing a weaker schedule.
After all was said and done, Dallas, Detroit, Houston and Pittsburgh played the four weakest schedules in 2014. Three of those teams made the playoffs and the one that didn't -- Houston -- finished with a winning record.
Anyway, here's the 2015 strength of schedule for each NFL team (Combined 2014 record of all 16 opponents, combined winning percentage)
1. Pittsburgh Steelers: 147-107-2, .579
2. Cincinnati Bengals: 144-112, .563
3. San Francisco 49ers: 143-112-1, .561
4. Seattle Seahawks: 142-112-2, .559
5. Arizona Cardinals:142-113-1, .557
6. St. Louis Rams: 141-114-1, .553
T-7. Oakland Raiders: 139-116-1, .545
T-7. Kansas City Chiefs: 139-116-1, .545
9. Cleveland Browns: 138-116-2, .543
10. Denver Broncos: 138-117-1, .541
11. Baltimore Ravens: 137-117-2, .539
12. Minnesota Vikings: 138-118, .539
13. Chicago Bears: 136-120, .531
14. Green Bay Packers: 135-120-1, .529
15. Detroit Lions: 135-121, .527
16. San Diego Chargers: 132-123-1, .518
17. Miami Dolphins: 126-130, .492
18. New York Jets: 125-131, .488
19. Buffalo Bills: 124-131-1, .486
T-20. Washington Redskins: 122-133-1, .478
T-20. New York Giants: 122-133-1, .478
22. New England Patriots: 122-134, .477
23. Philadelphia Eagles: 121-134-1, .475
24. Dallas Cowboys: 119-136-1, .467
25. Jacksonville Jaguars: 118-137-1, .463
26. Tennessee Titans: 111-144-1, .435
27. Carolina Panthers: 111-145, .434
28. New Orleans Saints: 109-145-2, .429
29. Tampa Bay Buccaneers: 108-146-2, .425
30. Houston Texans: 106-148-2, .417
31. Indianapolis Colts: 106-149-1, .417
32. Atlanta Falcons: 104-150-2, .409