Dan Campbell keeps going for it, and it's costing the Detroit Lions

PHILADELPHIA — It’s fun when it works. Effective when it works, too. Heck, it’s demoralizing when it works ... for the other team.

Convert a fourth down and a defense can sag. Human nature and all, eh?

Sag, and here comes another first down. And another. And a touchdown. Or a knee at the end of the game.