Productivity  programs  like  Getting  Things  Done  obviously  have  been  developed  around  the  needs  of  managers,  sales  people,  and  entrepreneurs.  This  makes  sense  given  that  those  are  largely  the  people  who  are  buying  the  books,  listening  to  the  CDs,  and  attending  the  seminars  (or  certainly  represent  the  largest  market  share  of  potential  customers).