Well, sure there's been a deterioration of, for instance, trained tool and die makers, as there haven't been jobs for several years, so people were not undergoing the schooling, apprenticeships etc., to learn skilled manufacturing jobs as there was no actual job at the end of that process. Some of the folks that used to perform those functions have aged out of the market and others have moved on, but I think it's a safe bet that if the incentive were there that some would return and others would train.
if this CEO is telling the whole truth, there is an unmet demand, and wages should then rise and drive that market response, except, no, they won't, as long as skilled manufacturing wages here don't rebound.
So, the jobs are there, but they're not paying what they should to support such action from the labor market participants and they are, therefore, not responding, as there is little incentive to undergo training to learn a skill that pays crap and won't even feed your family.
this and other CEOs are propping up their bottom lines, arguing there's nothing that can be done. Bullshit. Change the math, change the outcome.