Welcome to the Cafe!
Overall I feel your roster will be competitive.
You have a couple question marks around your players that I think should be pointed out.
First and foremost is the potential decline of Michael Turner. Turner has been worked very heavily throughout his career and is entering his year 29 season. If Turner can remain healthy, he will be a very solid RB2. The Falcons are possibly moving towards a more passing heavy attack, which hopefully will keep Turner fresh.
Reggie Wayne also worries me a bit, not because of him but because of Peyton Manning. Hopefully Manning does not miss much time, as Wayne is one of his favorite targets.
BenJarvus Green-Ellis will likely have to split time in a crowded New England backfield. However, Ryan Mathews and Tim Hightower could both perform as flex plays if BJGE falters.
I only highlighted those particular players as minor critiques. Like I said before, you are solid across the board.