Saints coordinator Rob Ryan: 'I guarantee we'll be better'

New Orleans Saints defensive coordinator Rob Ryan promised his defense will improve after a 37-34 loss to the Falcons in Week 1.

Ryan led a revamped Saints defense last season, but the team sputtered in the second half in Week 1.

"You obviously have to fix something," Ryan said to The Times-Picayune's Evan Woodbery Saturday.

"You give up that many points and that many yards, it's shocking." 

New Orleans led 20-10 at halftime, before allowing 27 second-half points.

"At the end of the day, that wasn't a real good game by us. We're going to fix it and we'll be better. You watch, I guarantee we'll be better."

The Saints have a great opportunity to rebound, playing the Browns in Cleveland Sunday.