Blount, who won a Super Bowl last season in Philadelphia, played for the Patriots in 2012 and from 2014-16. He'll now be reuniting with Matt Patricia, who has been hired as Detroit's new head coach, and Quinn himself.
Quinn could have signed Blount for pennies on the dollar the last two years, too, but elected to stand pat with a rotation that was headlined by Ameer Abdullah and Theo Riddick. That proved to be a miscalculation, and it came with some grave consequences.
While Blount was off winning jewelry, the Lions finished last in rushing for the second time in three years. They also averaged the fewest yards per carry. They were even the worst team in the league in power situations, converting just 27 percent of the time on third- and fourth-and-short.
That's where the 250-pound Blount comes in. At 31 years old, he's probably not going to be Detroit's bell cow in the backfield, especially if Quinn drafts a running back early. But he remains an excellent option in short-yardage situations, moving the chains five times in nine tries last season.
He averaged 4.4 yards per carry overall, which was his best season since 2014, and he averaged a whopping 3.6 yards after contact. That was third in the league.
So Blount might be in the late stages of his career, but he remains one of the better north-south pounders in the league. He picks up yards after contact. And those are the sorts of things Detroit has most lacked in the Abdullah-Riddick era.
Zach Zenner was signed on Friday too, while Dwayne Washington and Tion Green are under contract too. So everyone's back. But with Blount aboard, and a rookie almost certainly to follow, Detroit's long-sought makeover is finally underway.