Sure, the majority of these companies are using lean, we just pulled the last widget from the bin at the end of the line, the question is, are the people in the supply chain waiting for their next widget to process their part and increase production, or is the owner of company x still negotiating with a government agency x on which company x is going to make said widget and is government agency x going to approve said widget. Sadly at the end of the day it likely revolves around money and politics, if we just went to the guys standing On the widget line and told them we need to make x number of widgets, They can make them. Just give the system and people the parts and get out of the way. The American workers can meet the order, American bureaucrats and executives are hindering the process, pure speculation, but I would bet on it.
To Be clear, I utilized lean,tps,5s etc Making one of custom orders and could increase or decrease production by over 1000% in less than a week so as long as raw materials were obtainable, that’s on a small scale, push production not pull with materials far harder to obtain than those for masks, gowns, etc.. these literally are widgets we’re talking about, every part is the same, this is what lean is most efficient at producing, just give the people the parts, that’s it.