In a recent blog post, Philip Allega asked the following 4 questions. In the absence of a specific scenario to allow contextualized answers this is my 2 seconds worth.
How will you deliver business value?
By addressing specific business problems and delivering measured benefit (some of which you will attribute to the EA team.)
What will your key results be for your EA program?
Evidence based decision making, reductions in the cost, risk and complexity of initiatives and the successful delivery of value-adding business transformation.
How will you know if you are successful?
Metrics based primarily on business outcomes rather than on the productivity of the EA function.
What will you contribute, minimally, to the leadership of the IT organization?
Education: About EA as a method for delivering business ends using the means of enabling business functions.