Five years on from Bin Laden's demise Frank Gardner, BBC SEcurity Correspondent, has this short review and concludes:
But as the global effort grinds on to defeat or at least contain violent Islamic extremism, the absence of such a charismatic figure as OBL was to his followers makes it unlikely that such a decisive one-off moment as his death five years ago will ever be repeated.
Link:http://www.bbc.co.uk/news/explainers-36127770