A cabinet reshuffle is when ministers are moved around their posts within government. This can be as small as a single replacement for a colleague who resigns or leaves office, or as large as a major transformation of government departments (or even the creation of new ones) with many ministerial positions changing hands and others being eliminated altogether. It can also involve reassigning responsibilities between departments to reflect new priorities or for administrative reasons.
A reshuffle is a hugely influential political event, and one which affects the whole country. It is used by Prime Ministers as a way to rejig their leadership, deal with political battles with backbench MPs, and respond to unfavourable opinion polling.
It is less common in systems where the membership of cabinet is chosen from the legislative branch of the government – for example, the United States President can only move cabinet secretaries to different roles if they are confirmed by the Senate. It is also less frequent in countries which have parliamentary systems and more checks and balances on the power of ministers.
Reshuffles can often result in the loss of valuable expertise within a department and it becomes difficult for them to build up a track record of success. This is why it is so important for politicians to understand the impact that their decisions can have, and why it would be beneficial to consider restricting how often these changes take place. Ministers should be given a proper opportunity to drive through policy initiatives that they are passionate about, and not have their efforts sabotaged by the need to constantly rejig leadership.