So here's the proposal: At party conventions, in addition to nominating a president and vice president, party leaders should put together a Cabinet. Party leaders would negotiate over this, a log-rolling process that would give different groups in the party coalition representation in their party's government. The presidential nominee could play an important role in the process, but ultimately it would have to be a negotiation among different groups within the party. Losing candidates might wind up in the Cabinet, bringing their supporters along.
Lee Drutman