ManpowerGroup: New leader model identifies leadership traits and provides practical solutions to predict, develop and measure leadership effectiveness May 12, 2016 http://www.prnewswire.com/news-releases/is-good-leadership-nature-or-nurture--new-leader-model-identifies-leadership-traits-and-provides-practical-solutions-to-predict-develop-and-measure-leadership-effectiveness-300267805.html
