The Steelers virtually can not get a WC. It's either win or the division or bust.
If Washington beats Tennessee or Giants beat Colts....and then that team wins the week 17 matchup against each other, then Steelers get the WC. Neither of these teams are world beaters. Washington is playing for the WC and even the NFC east. Thr Giants play hard even with a crap record. At the end of the year, shit teams pull off upsets because they get bums on their rosters who are busting their ass trying to get roster looks for next year.