This sounds to me like the issue is more university programs: people completing a STEM degree SHOULD come out of it able to take on a STEM job.
To be fair, college is not trade school, nor is it supposed to be trade school.
on the job training is often the current solution
10-15 years ago, this was standard operating procedure for college grads, as were decent training budgets to keep all employees up to date on skills. Only more recently have employers demanded a turn-key candidate while training budgets have been cut back or zero'd out.
It's pretty worrisome for the future. Many individuals in this thread complaining about lack of qualified candidates may find themselves unqualified to a future employer if they don't value training.