3 changes coming to Chicago Bears against Detroit Lions. What will their impact be?

1. Justin Fields will start for the Chicago Bears

Sunday is not only setting up for the return of Justin Fields; it is setting up for Fields to play really well. When he left, he was just establishing a rapport with D.J. Moore and Cole Kmet. Since then, Darnell Mooney has looked a lot healthier, and Tyler Scott has become a piece of the offense. 

At running back, D’onta Foreman has established himself, and they should get Khalil Herbert back. They also have the receiving skills of Roschon Johnson. 

Foreman is running better because the line is healthier. Teven Jenkins has improved things dramatically, now Braxton Jones is back in the mix, and Nate Davis will return Sunday. Sunday is the best offensive line and weapons he will have in his entire career. 

The line is ready to run block downhill, and Justin Fields adds a mobility element that Tyson Bagent does not. When you add in the upgraded run blocking, the upgrade at running quarterback, and the speed of Herbert at running back, this running game could be elite down the stretch. 

The defense is healthier and better than he has ever seen, as well. We have never seen Fields in such a good situation, and he now has seven games to prove himself. It will start with showing that he can hang with Detroit on the road.