Jared Cook is fresh off the best season of his career and is now with the Saints, who have been absolutely amazing with fantasy tight ends. Just look at what Jimmy Graham was able to do back when he was playing in that system. Cook probably isn't going to be as good as Graham, but he is still going to be the third option in an elite offense behind Michael Thomas as Alvin Kamara. Though being third in line for targets is going to prevent Cook from being an elite fantasy option (unless either Thomas or Kamara gets injured and missed time), Cook will be a reliable option. He isn't going to finish the season as an elite fantasy tight end unless an unforeseen injury occurs, but Cook is a solid option if you miss out on one of the top tight ends.