Pick which winning percentage you want

A 10-7 team literally smoked a 14-3 team in the NFL playoffs less than 24 hours ago. Upsets happen in the playoffs virtually every year. The more chances you get, the greater your odds to get hot or get a few breaks at the right time.
14-3 teams usually play at home. This was the first time in history a 14 win team didn't have home field adv throughout the playoffs.