The committee set on to redefine the company’s goals, despite facing numerous challenges

The phrase "set on to redefine" is grammatically incorrect. The correct phrasal verb in this context is "set out to", which means to start a task or goal with a specific purpose or intention in mind. "Set out to" correctly indicates that the committee began their effort with the goal of redefining the company’s objectives. Set aside: "Set aside" means to reserve or disregard something, which doesn’t fit the context of beginning a task. Set in: "Set in" typically refers to something beginning, such as weather or conditions, and doesn’t apply here. Set up: "Set up" means to establish or organize something, which doesn’t match the idea of starting or aiming to achieve a specific goal.