Why do we need Trumbo? Where are we going to play him?
They need pitching. While Rendon would be interesting, they are in win now mode and need another 2/3 starter
Trumbo would play 1st. He's a Rizzo-type guy, cost controlled for a long time. Yes, his OBP is low, but he raised it from .291 to .317 and he's still only 26. Over the next 4 years he should be a pretty solid hitter.
Again, I know there's no way of it happening unless as you say we have a 3-4 starter we could deal.