While I like the writer, I would decribe this article as an opinion piece. As the article also mentions:
So who is the target? That depends, of course, on when the illegal acts occurred. One possibility is that involved members of the Dodgers’ international scouting department who were terminated in 2015, a year after president of baseball operations Andrew Friedman assumed command. That shakeup was fairly comprehensive: the team fired vice president Bob Engle, scouting coordinators Patrick Guerrero and Franklin Taveras, and several others. But even if that’s true, Friedman may very well still be on the hook if he (a) was aware of the activity but (b) didn’t immediately notify authorities. There’s also the fact that these employees were present for a full year after Friedman took over, and I doubt a prosecutor will be sympathetic to the argument that it was necessary to retain the services of known criminals in order to sign some free agents. Plus, the Dodgers’ internal communications cited in the SI story regarding illegal activity were from 2015 and 2016, after the Dodgers cleaned house.
While it's not a good look in any case it still seems unlikely he would have been involved in this aspect of operations, and the only reason his name keeps coming up is he's a major league manager who people have heard of. There have to have been five-ten other people on the Dodgers' organization chart between Friedman and Kapler and nobody is bringing them up because they aren't as well-known.
If the "this was still going on in 2015 and 2016" theory is true that also implicates the Braves' current GM.
And let's not kid ourselves - nothing about this story is probably shocking to Middleton or Sal. It is a black market and every team shops it.