Nudges - The Name of the Game in a Crisis Like Covid

With the cobe 19 vaccine right now, we are seeing a bunch of people invoking large financial incentives. Or there are also negative incentives, like not being allowed into certain places if you don't have a vaccine. So let's imagine that angela duckworth were appointed cove 19 vaccination completion czar to morrow. What share of your arsenal is comprised of nudges, and how much do you rely on bigger incentives? I think the name of the game in a crisis like covid is both, and not either or.