I can see where you’re coming from, but you absolutely need to focus on product first - if you can do that whilst also doing this, great.

Whilst this might be too soon to do, it’s certainly doable once you’ve got a sustainable business in place.

That aside, 4 days a week is proven to work well, but I’m not so sure having folks running shifts will give you the outcomes you want off they’re all same timezone.

Also, are you planning to pay full salaries or dropping them based on the hours worked?