The phrase "switching over" can be replaced with a variety of synonyms depending on the context. For instance, the phrase "changing over" can be used if there is a shift from one thing to another. "Transitioning" is another word that can be used when there is a change in the state of things. "Swapping" is a synonym that is commonly used when exchanging things. Similarly, "shifting" can be used in a similar context but refers to a movement or adjustment. "Converting" is used for changing from one form of something to another, while "alternating" is used when there is a repeated cycle of change. Other synonyms include "flipping," "exchanging" or "trading.