Many of the players in last years draft were injured this past season. Kwesi also was able to trade for Hockenson. I wasn't against the Addison selection as they will need another quality receiver to take some pressure away from Jefferson.
But the team is in a near complete rebuild mode, especially on defense. They can't splurge in FA due to their salary cap. They only have 5 draft picks this season. The team needs to get rid of Cook as his costs are way too high for the value he brings this team, and the Vikings have some quality RB players behind Cook at a fraction of the price.
Frankly, this has the making of a 5-8 win season. The North is Detroit's to lose
I feel optimistic with Flores at DC though. That could have an impact. I also think they'll get 1 more FA CB that fits Flores' mold.
For all we know, Flores likes what they've got at CB and would rather have a lower cost free agent/trade than a rookie CB.
The other side of this is the front office is seeing this as a longer term rebuild and Addison is more of a sure thing. I think there is zero risk that he turns out to be a complete bust. Maybe not a star, but a floor of a solid #2 or #3. The first round caliber CBs probably have a higher risk of being a bust.