"Need to be stepped up" is a common phrase used to indicate that a task or activity requires more effort or attention to achieve the desired outcome. Some synonyms that can be used to replace this phrase include "require more attention", "call for increased effort", "demand more dedication", "need to be amplified", "require greater focus", and "need to be escalated". These synonyms convey a sense of urgency and emphasize the need for a higher level of commitment to achieve the desired result. Using synonyms can add variety and depth to your language, and help you communicate more effectively.