I just traded AM for a 2024 1st
This seems like a good return for Mattison right now as I dont see him being the Vikings starter long term. Either because of the draft or free agency this or next season he may be challenged for that role. Or possibly from what they already have on the roster, although this seems less likely to me than by a player yet to be named.
That said the Vikings are showing us that they do not prioritize the RB position in their roster construction. So it is possible that Mattison plays well enough to hang on to the starting role for the Vikings all season, and if he does maybe keeps that role in the 2024 season as well because the Vikings have a lot of needs at other positions than RB. Especially all across their defense. But they might be looking for a rookie QB from the draft if they can get in position to get one and offensive linemen as well is an area that can still be improved. The way they like to throw the ball they might be looking for another WR also in Osborn moves on. I believe he is a free agent after this season?
The Vikings might be fine with a RBBC if Mattison isnt good enough to keep the starting role for himself.
All of that is to say I like the trade for you but it could work out for your trade partner as well if Mattison puts up decent numbers this season, which if he does gives Mattison a good shot to keep that role in the 2024 season as well.
I recall trading a 1st round pick for Chester Taylor when he signed with the Vikings. He is a player I had liked for a long time as a Raven before me and my trade partner made the deal.
At the time I was very flush on 1st and 2nd round picks from some other deals I had made prior to this. I was loading up on picks in preperation for when Adrian Peterson would enter the league at this time, and also as just a general philosophy that having picks was good. They were great trade capital and a way for me to expand the overall value of my roster. My team was very good and a perenial contender for titles at the same time. I was able to make a lot of trades because I had a lot of players people wanted, especially at the WR position where my team was loaded.
I was totally fine with paying that 1st round pick (ended up being pick 11 I think) for the one year of starting options I got out of Taylor before the Vikings drafted Peterson, who I also drafted with the 1st overall pick I had from previous deal. I didnt even have to trade up to get Peterson although I had the draft capital and roster to be able to do that if I had needed to.
Taylor became an expensive back up for me after that, but I had no regrets about what I paid for him at all.
With all of that said, I dont think Mattison is as good as Chester Taylor was, but just saying it could work out fine for the buyer as well.