Not bad move there. With as much as the birds throw the ball Ryan's clearly the superior QB. Fitzy pushes Megatron and you get a nice RB for depth. Scary as it is I'll take PT Cruiser over Lynch anyday.
trade is good on your part, and did fix one of your issue; QB. you just need to get better RB, i'll suggest trade AP for 2 decent RB like Hillis/Mathews or Gore/Wells or sometime possibly CJ2K/F.Jones
this trade only make your already strong WR even stronger, which is good, but not sure if it's enough to pull you from 0-4 my guess is megatron owner is worry about his injury, that's why he traded for Fitz