In the micro-world of Yankee Opening Day Roster, this is what I predicted the whole time.

"First base (2): Greg Bird, Luke Voit
What changed? General manager Brian Cashman said earlier this month that he did not envision carrying both first basemen, but that was before Aaron Hicks' lingering lower back injury. Bird and Voit both had impactful springs at the plate, and both should see playing time in the early going, though Boone believes Bird has the defensive edge."

I think Voit might be a better defender.

I don't know why anyone thinks Bird is a better defender than Voit.

Bird may still mature into a good MLB player. He isn't yet. It just seems that he gets the benefit of the doubt because he looks like a good MLB player.