If West Ham have been blighted by difficult African players of late, there is only one problem for Tony Henry as head of player recruitment. He recruited them. It is rather self-serving, then, to slander an entire continent, and its workforce, for what is basically the club's problem.
If in Henry's experience African players have a 'bad attitude' and 'cause mayhem' then maybe he needs to dig deeper into backgrounds and character. Certainly, Chelsea never made that complaint of Michael Essien, Didier Drogba or Salomon Kalou.
Indeed, for every Diafra Sakho at West Ham, there has been a Dimitri Payet, who was just as much trouble, but a lot less African.