Germans expect room to interpret decisions when implementing them. In certain situations Germans will deviate considerably from a decision which they, as subject matter experts, judge to be unwise, counterproductive, or harmful to the business.
The line between those who make decisions and are responsible for their outcomes, and those who carry out those decisions, is drawn very distinctly in the American context. Decisions which cannot work or would damage overall efforts are communicated up the chain of command by those working on the tactical level. There is very low tolerance for questioning decisions.