As the Vikings became less enamored with longtime Dalvin Cook's production relative to his cost, it became clear that the sides were moving toward moving on from each other this offseason.
Cook's fate might have been sealed, at least unofficially, when Vikings head coach Kevin O'Connell addressed the running game at the NFL Scouting Combine.
"It comes down to efficiency," O'Connell said. "The home runs and long [runs] are great, but as a play caller, I'd love to be second-and-5."
The message: Cook's game-breaking ability, which helped the Vikings to important wins over Miami and Buffalo last season and had served both the back and the Vikings nicely for six seasons, was no longer enough to offset his downside. Cook was aging, and his negative runs that put the Vikings in second-and-long situations were too often hampering O'Connell and QB Kirk Cousins' ability to run the offense smoothly.
The Vikings re-signed Cook's backup, Alexander Mattison, to a two-year deal and made him the primary ball carrier. Cook got a one-year deal with the Jets as they loaded up to try to win a Super Bowl with Aaron Rodgers.
And as I talked about on Friday's Daily Delivery podcast, it hasn't really worked out for either the Vikings or Cook so far.
Mattison has delivered runs of 5 or more yards on a slightly higher percentage of his carries this season (40%) vs. Cook last season (34%), but Mattison also has gained 2 yards or fewer on 44% of his carries — slightly more than Cook (42%) a year ago.
Mattison hasn't had a run longer than 19 yards all season. The Vikings are 30th in the NFL in rushing yards per game and have yet to score a rushing touchdown, making them neither very efficient nor explosive. Mattison is essentially in a time share with Cam Akers, who wasn't even on the roster when the season started.