You may want to get a feel for how the years going before making any snap decisions or tweaks.. nothing worse than making a pre season trade and having that blow up in your face..
But as the above have posted, you may have avg points per week issues at RB. Moreno is in a multi back system and is an unknown and the Bucs (whom I'm a huge fan of being in Tampa) have just said they will be using a "3 headed monster" attack with Ward, Graham, and Caddy. That being said, you have 2 of the three so if the Bucs become a run juggernaught like NYC (we do have a nice O Line nowadays), you could be pleasantly surprised..
If you become unhappy with your RB situation, I'd deal Fitz for a Tier 2 RB + WR if you can, maybe throw in a flyer type like Moreno..
Also imo you're wasting Bench space holding 2 D/ST's.. pick Eagles or Bears and lose the other.