why good workers leave intrinsic vs extrinsic rewards most common us motivators personal qualities related to job motivation 1 ability 2 needs 3 frustration tolerance 4 self esteem 5 outside supports evolution of human relations concepts scientific management frederick taylor gantt charts gilbreths behavioral hawthorne mayo maslow mcgregor ouchi herzberg s hierarchy theories theory x autocratic dislike work avoid responsibility little ambition forced controlled directed threatened motivated by fear & money y democratic like naturally works toward goals seeks imaginative creative clever empowerment z long term employment collective decision making individual slow evaluation promotion specialized career path holistic concern for employees two factor concept achievement recognition itself growth advancement peer relationships environment working conditions salary policy admin supervision oriented motivational techniques enrichment redesign skill variety task identity significance autonomy feedback simplification enlargement rotation goal setting mbo objectives 1960s motivate themselves help coach employee expectancy equity how use determine valued evaluate performance level you seek make