Do job-seekers have the right skills to pursue the best jobs in IT?

The total number of job openings in the US alone rose to 7.3 million in June, according to the Bureau of Labor Statistics. Recently, I read that there are job openings at a large US-based technology company for designers of chipsets to deploy in areas such as on-device machine learning. Forecasts suggest that there will be 3.5 million unfilled cyber-security positions by 2021 . Having said that, are job-seekers today equipped with the right skills to pursue the best jobs in IT? With rapid advances in technology, what one learnt at university or in the workplace over the past years, may not be enough for application in today's business scenario.