The Seattle Seahawks had the best rushing offense in football last season. When they try to repeat this year, they'll be doing it with a different backfield. 

The Bears, on the other hand, made a massive move at the expense of Seattle.

Chicago has signed Mike Davis, per insider Ian Rapoport.

​​This is quite possibly going to be one underrated signing.

Davis had to split time with Chris Carson and Rashaad Penny for the Hawks, but thrived when he got an opportunity to play. He finished with 514 yards on 4.6 yards per carry with five total touchdowns. He was one of the most efficient running backs in the division despite the lack of playing time, and will now get a shot in an incredibly unique offense under Matt Nagy.

This move is big for the Bears future, in that it likely means they're moving on from Jordan Howard. Chicago did show interest in trading him, and now essentially have to move on thanks to the arrival of Davis. They already have Tarik Cohen as the main guy, which means Howard could be gone sooner rather than later. 

Just another wrinkle in the ever-changing free agency picture.