Change horses in midstream

The phrase "change horses in midstream" means to make a significant or unexpected alteration in plans, strategies, or decision-making during the middle of a process or project. It suggests the idea of switching to a different course of action, even when it may seem inconvenient or risky, rather than continuing with the current course. This phrase is often used metaphorically to emphasize the importance of sticking to an initial plan until completion without abrupt changes.