Yes, Klaus Kleinfeld's leadership style was criticized as being "brash" and "American."
Kleinfeld's leadership style was seen as being too assertive and confrontational for the German business culture. This style of leadership may have been more successful in an American company, where it is more common for leaders to take a more direct and aggressive approach.
However, in the more consensus-oriented German business culture, Kleinfeld's style of leadership was seen as being disruptive and alienating.