The Evolution of the Executive and Executive Assistant Relationship: The Ingredients. Arguably the most important aspect of the Executive and Executive Assistant (EA) relationship is their ability to jointly function as a team. When an Executive views their EA as a business partner and not solely as a support function, the team gains power. The successful construction of a team requires effort and commitment from both parties. Trust, communication, empowerment, delegation, and an exchange of expectations must be earned, contributed, and exercised mutually. The greater these components are exercised by each, the greater the return on investment.