Cowboys are on a 10 game win streak. 6 of those teams have losing records, with the Bears and Browns being especially bad this year. They beat the 49ers by 7 points. Their best win this year was probably at Pittsburgh, in which they gave up 30 points. Coming up they get the Buccaneers and Lions at home, which is fortunate.
If the Vikings had their head coach tonight I would pick them to win.
I think the NFC playoffs will come down to the Cowboys and Seahawks and who has home field advantage.