Magaret Macmillan,

The wartime generals were not all cowards and incompetents as Alan Clark argued in his infamous The Donkeys (1961). A new generation of British historians, among others, has done much to explode such lazy generalisation and show that commanders developed both strategies and tactics that, in the end, worked.
http://www.ft.com/cms/s/2/7b6f0490-6347-11e3-a87d-00144feabdc0.html#axzz2oJ9WwKyd