The phrase "throws monkey wrench in" is often used to describe situations where something unexpected or unwanted happens, causing disruption or chaos. Antonyms for this phrase could include "smooths out," "strategizes," or "streamlines," which all suggest a purposeful and productive approach to problem-solving. Other antonyms might include "harmonizes," "aligns," or "orchestrates," which suggest that all elements are working together in a coordinated and synchronized manner. Ultimately, the choice of antonym will depend on the context and desired outcome, but incorporating positive and proactive language can help shift the focus from problems to solutions.