It’s tradition for the next campaign to begin as soon as the election is over. And so it will be this year, with one major difference for the Republican Party: It’s not clear who’s going to run all these campaigns, and yet staffing is key to securing primary and general election victories. The floodgates will be opened as soon as this week for tons of GOP candidates, and consultants from outside of Trumpworld, to enter the arena ahead of the 2024 presidential contest. Some, such as South Dakota Gov. Kristi Noem and Arkansas Sen. Tom Cotton, have already begun stealth campaigns, doing “Trump”- and “party”-boosting events on the 2020 campaign trail (not so coincidentally, in Iowa and New Hampshire). But who, in the end, will run — and whom will they hire? After all, the...