​Despite losing breakout rookie Dalvin Cook to a torn ACL, the Minnesota Vikings were one of the NFL's top rushing teams last year thanks to the duo of Jerick McKinnon and Latavius Murray. But with a new season comes inevitable changes, and McKinnon is expected to depart in free agency.

The Vikings have wasted little time filling a roster spot on the running back depth chart, as the team reportedly will tender exclusive-rights (that is, super-duper restricted) free agent running back Mack Brown.

Brown signed a one-year deal for $630,000.

​​Brown entered the league undrafted out of Florida in 2015 and bounced around between the Texans and Eagles before being claimed off waivers by Minnesota last October. During that time, Brown appeared in just one game but did not touch the ball. 

This is a smart move by the front office. Brown has some upside at just 26-years old. The Vikings have had success with lesser-known running backs in the past, too, so there's no reason to write him off.

If anything, Brown provides a low-cost insurance policy in case things go south with Cook again.

Not for nothing, Brown played with Kirk Cousins all of 2016 season and part of 2017. The Vikings could be in pole position to sign the star QB in free agency.

Maybe he'll be used as a recruiting tool to lure in the free agent quarterback next week? He deserves a bonus if that's the case.