If bills rest the starters, Dolphins wouldn't mind getting used to the conditions/cold and get used to the environment they will be playing in following week.
Of we end up playing dolphins we will have to game plan for both QBs, if bills are winning in the 4th you will see Fitz come in. I'm not sure if that's something bills want to do, they are both different type of QBs.
He wasn't going to get that many targets here. He is being featured there because they don't have much in terms of catching football. If bills game plan around knox he will also get those yards. Bills have lot better receiving options hence you are knox catching an odd touchdown. Bills like to spread the ball