And, you're a rocket scientist!
You asked for executive accomplishments. I provided two, prior to his election to POTUS. Whether you agree with the legislation that he signed in to law, does not matter. It most certainly is something he set out to accomplish, as the Chief Executive of the State of Texas, and did accomplish.
Prior to his election to POTUS, BHO had yet to ever sign any bill in to law. He had executive experience as the President of the Harvard Law Review. That is it. As the Junior Senator from Illinois, BHO co-sponsored 3 pieces of legislation that passed in the Senate.