This is called a Leadership Development Programme, but probably better described as a Leader Development Programme as it focuses on each individual & their own specific strengths & development areas. We are not trying to change or alter each person, rather help each individual to be the best they can be. It is about enhancing rather than altering.
The overall philosophy behind the programme is that the best leaders are confident in their own strengths so that when they are working in an area which they know to be a strength, they can be confident that they are doing this well. This helps to create certainty around them and enhances their credibility as leaders. They also need to know their development areas and, this programme helps them to identify and work on these.