I agree that Duncan is not a mouthpiece of the team. He often reports what they say, but that's a reporter's job.
But, Duncan is a hoe. :) I had issues with him before he decided to take the side of the NFL on Bounty Gate to drum up his own name recognition and he has continued to basically troll Saints fans every chance he gets. Beyond that, I don't find him particularly insightful about the game. He's really a horse racing guy trying to cover the Saints.
Beyond that, he once came here under the name "Scooter" and started posting things without revealing that he was Jeff Duncan. Just left a bad taste in my mouth.