How can the sluggish coronavirus vaccine rollout be sped up?

There’s a popular saying among public health experts: “Vaccines don’t save lives. Vaccinations save lives.” The approval of the first coronavirus vaccines last month following an unprecedentedly fast development process gave the United States reason for hope amid the dire news of surging case numbers. But the pandemic can’t be brought to an end unless doses of the vaccines actually get to the people who need them.

So far, the vaccine rollout has moved much more slowly than expected. In October, the Trump administration said the U.S. could produce up...