How did the war effort affect US manufacturing? US companies were unable to meet the demand.
France supplied most of the vehicles used in the war.
Great Britain stopped purchasing US goods.
The US became the largest manufacturer of airplanes.

During the war 17 million new civilian jobs were created, industrial productivity increased by 96 percent, and corporate profits after taxes doubled. The government expenditures helped bring about the business recovery that had eluded the New Deal.

Not to fast to take decisions, talk with him and find out what the problem and what up with the attitude after that ask him if he want you to move on. If he doesn't answer any then move on