How can a team with so much talent lose to the Saints?

I know man. The hated Aints should have lost today's football game especially with the way they played the last few games of the season as well as the bye week. Its obvious that the Cards have been the hotter team the last few weeks and I really thought they would have had the momentum to demolish these losers. But don't worry, if the Cowboys can win tomorrow, I have faith that they're gonna knock these Aints down once again.