This is year four with Dan Campbell, Ben Johnson, ASB, 3/5 of the OL, and Jared Goff. You can add a few more that it’s year three and a few more with year two. There is chemistry and consistency there.
A random swap for any other K in the league, even the best in the league, would cause question marks for the chemistry amongst those pieces. I don’t think the NFL works in a way that you can take a really good K and just insert him on another team and expect instant success. The kicking game has been built around and is designed to work for Michael Badgley.