English language course for IT

A course in English was developed for a senior manager in an IT company, who subsequently received a promotion. The client's level is Pre-Intermediate. Active spoken language with many mistakes, while maintaining the content-distinguishing function. Lack of vocabulary. Inability to follow sentence structure rules. Pronounced contextual orientation. Ability to adapt existing skills to achieve communication.
What was done.
Case study materials were developed for his IT field and role in the company.
The material was broken down into correct language that is compatible with his speech style using high-ranking language clusters.
Training was completed.
Consultation on general language construction was provided.