Unger is a shell of his former self. Injuries have really taken a toll on him. That's not to say they don't need a center, because the interior line is the biggest weakness by far, but the Saints aren't getting the Max Unger that was a Pro Bowl caliber player.
The 1st round pick is a wash.. since that's essentially Jimmy Graham now. Besides their track record in Round 1 is borderline crappy, while the mid rounds is where they unearth gems.