So when the business needs are greater, therefore, may require a lot of people. Individuals with inadequate standards, therefore, the need to hire someone to work but may not pass the ICAO standards defined.
So when a business needs to have more, it may take a lot of people. Individual standard was not sufficient, so the need to hire someone to work but may not meet the ICAO deadline.
So when business requirements are more and more it may require a lot of people. A person through the standard is not enough, therefore, need to hire someone to work but may fail the standard ICAO set.