General Motors finance head quits after return to black

  GM came out of government-backed bankruptcy in 2009 

General Motors' (GM) finance head, Chris Liddell, has resigned after taking the company through its first profitable year since 2004.

At a press conference, Mr Lidell said he doesn't want to be a chief financial officer any more
Mr Lidell was passed over for the top job at GM last year.
His resignation renews concerns over leadership at the company, which has seen top executives change four times in the last two years.
Mr Lidell will be replaced by Treasurer Dan Ammann, GM said in a statement.