As long as businesses continue to hire people, the basics will hold. It's well within the reach of almost all people to change their leadership abilities. Leadership is, after all, the sum of a person's natural abilities and the knowledge and habits that have been acquired, consciously or otherwise. Before tackling the points one at a time, it's necessary to review how these principles and traits are best used. Conscious improvement, complete with goals and timetables, is the key.
Dinosaurs make expensive pets.
The demands for technical expertise have grown, and employees need industry-specific knowledge, computer literacy and general quality knowledge. Where there are weaknesses, improvement plans, complete with specific tasks and schedules, are called for. Where there are strengths, efforts to learn from those strengths and to emphasize them are called for. Know your people and look out for their welfare. This is made more difficult by the rapid turnovers common in so many companies today.