I think it's pretty clear Arraez is the better 1B right now (since he's a butcher at 3B), so I say we play Luis there against righties and Sano there against lefties. Sano didn't heat up in 2021 until Rocco started platooning him in June, so maybe that could be a last-ditch move to get his season on track. If that doesn't work, it's time to move on and give someone in AAA a shot in his stead - it wouldn't be hard to match his current production at the plate and in the field.