LANDOVER, Md. -- Jason Garrett spent quite a bit of time this offseason talking to his team about finishing plays, which leads to finishing games, which leads to finishing seasons. Whatever Garrett’s been telling them has worked. The Cowboys finished the season 10-0 when leading after three quarters and finished the season 4-0 in December. In the fourth quarter of their 44-17 rout of the Washington Commanders on Sunday, the Cowboys won the fourth quarter 17-7 turning a 10-point game into blowout.