Willy Adames feels like what the Red Sox were hoping Trevor Story would be when they signed him.
Great defense at SS. 30 HR pop. Good for 20 stolen bases. Going to strike out a good amount, but the pop + value on the bases will outweigh it.
I wouldn't move Casas for this path. But I would consider moving Devers to DH if they want a left side of the infield that includes Adames/Story. Then you can consider moving Marcelo Mayer in a deal for a front of the rotation arm.
Obviously gotta send Yoshida somewhere in this scenario. But it comes with improved defense and hopefully more offense with Devers not needing to play the field much.