All correct, and I did not mean to imply they will do as I suggest in this one scenario. They may see the Devers moves to 1B as being years away, but I can't help but think they know his 3B defense is a major liability, as is Casas at 1B. Those two positions are not as important on defense as middle infield and CF/RF and catcher, but if improving the defense is a goal, to me only catcher and corner infield look to be on the agenda.
Middle infield may fix itself with a healthy season from Story, alone, but adding Mayer and Campbell to the mix could help as well. An OF of Duran, Rafaela and Abreu with Anthony joining soon is already one of the best defensive OFs in all of MLB, if not THE best. With Teel in the system, maybe a temporary fix at catcher might be the only external move we make to improve our defense.
Shifting players around offers a non-external option, and opens up questions that cannot be answered, until we see it happen.
Devers may be no better than Casas at 1B, but the plan was to move Casas to DH, anyway, so if Devers looks worse, we simply move him to DH and keep the same exact rotten D at 1B as we already have. No change in D at 1B, but the suggestion assumes whoever we put at 3B (Campbell, Mayer, Meidroth of even Romy/Sogar) would almost surely be better on D than Devers. I simply cannot imagine anyone being worse.
Hey, how about Yoshida plus others to STL for Arenado? He is at a $30.5 AAV x 2, but makes $32M x 2. That's $64M for the $54M owed Yoshida. Add Abreu and maybe a little cash, and maybe STL agrees. This would not free up the 3B slot for our bottlenecked middle infield, but our defense would be greatly improved, no matter who plays 1B.