the first 90 days with harvard business review article "how managers become leaders" (2 items)  this harvard business review collection, featuring the work of celebrated author and advisor michael d. watkins on leadership transitions, includes the international bestseller <b><i>the first 90 days, updated and expanded</i></b> as well as the 2012 <i>harvard business review</i> article, “<b>how managers become leaders</b>.”