>internal promotion of engineers to engineering managers That assumes you have ICs who want to and have the skills to go into management. Promoting people for

>internal promotion of engineers to engineering managers That assumes you have ICs who want to and have the skills to go into management. Promoting people for the sake of filling a chair leads to really bad dynamics. Moreover, newly promoted managers lack experience and if all you have is the blind leading he blind then it tends to create issues. You need some seasoned people in the mix to provide guidance.