The phrase "of the chief executive" can be replaced with a variety of synonyms to add diversity to writing and avoid repetition. These synonyms include "from the CEO," "belonging to the top manager," "related to the head honcho," or simply "executive's." By using synonyms, writers can create a more engaging and varied text. Additionally, these synonyms can be used to emphasize different aspects of the chief executive's role and authority, such as power, decision-making, strategy, or leadership. Overall, learning and using synonyms for common phrases is an essential skill for any writer seeking to improve their language and communication skills.