While employed by Nucor, Executive shall perform such duties for and on behalf of Nucor as may be determined and assigned to Executive from time to time by the Chief Executive Officer of Nucor Corporation or the Board. Executive shall devote his full time and best efforts to the business and affairs of Nucor. During the term of Executive’s employment with Nucor, Executive will not undertake other paid employment or engage in any other business activity without the prior written consent of the Board.