Sounds like somebody wants to go to the beach for a couple weeks instead of campaigning.
I suspect a good number of the staffers for these clearly lost causes, especially the staffers not fresh out of college, get attracted to the campaigns by contracts guaranteeing x amount for y months of effort, but if the candidate drops out early the staffers gets the whole amount. Them they can join another campaign and double dip. Probably a savvy staffer can pull it off three or four times. The staffers can't quit, or they will lose out on their contract payouts but they had no expectations of sticking around with a loser until next November. Also, as campaigns coalesce and build out, staffers new to campaigns have to take whatever is available rather than what they want. Want to be a policy analyst or speechwriter? Sorry, all we have is call center staff right now, take it or leave it.