Brazil won World Cups with it and it has also been used successfully by Santos and Palmeiras. The Hungarians were also big on it too. It's pretty simple really, strong defence + strong attack = success.
that made me laugh, how on earth can you compare the Brazilian national team to ICT! Formations and tactics are only as good as the players trying to use them. Butcher knows our limitations, strengths and weaknesses and will use a formation to suit that.
bizarre logic there. numbers do not always = strength. Who has the stronger line up here; Thierry Henry and Samuel Eto or Barrowman, Rooney, Imrie?