This question may be tricky and needs a lot of deliberation before answering. We must answer this question wisely, and this will be through talking about is related to the skills of the job requirements. For example,

The employer will not care about the weakness of mathematical skills that you are applying for the post of editor or publisher. You can also talk about the skills that were not good in the past, but you've improved on. For example, perhaps you're shy

Formerly introverted but now I became more

Trust and love to communicate with people around you. You do this, you made your point turning the negative into a positive.