I think Raytheon had better scale up production.
(NB though that the Patriot system takes a months to learn and a large crew to operate and maintain. It's not a quick fix.)
@Florence Gen Hertling, who worked with the Ukrainians in the recent past and follows their military closely, thinks it will be several months before Ukraine can deploy Patriots effectively.
I usually go by what he says. He's got a remarkably good track record so far. (He predicted Russia's failures on Feb 24.)
@RationalLeft Yes, I know him.
@RationalLeft I understand they've prevoiusly had training with them when the US was training a lot of their troops last year.