I can make a good art but if I can't sell it to anyone then I won't be considered as a good artist so we can consider them skillful only if we see them to do what they are good at it. And the solution here is simple someone with a skill but lacks English to the tool to communicate with his client then all he need to do is just hire someone who is good at it so you can concentrate on what is important and that makes you a boss too.

You got good grades in your academics but you lack real world skills then you can't find a job in this competitive market because people are in need of jobs so one must be good at both and also need to sell what they are good at to their employer to get the job.