Shakib in his press conference confessed that it was his fault. He could not reach double figures in the group matches but he was trying to defend about returning early in the hotel before the Irish match. Whatever he says now I find it difficult for someone like Shakib to take all the burden on his shoulder.
There were other players who made bigger mistakes. He did not mention his bowling which was above average. Its turning more and more precarious.
http://www.ittefaq.com/content/2009/06/13/news0198.htm