You need both technical and non-technical management skills, and if you can't get both in the same person (likely!), you need the people from each side in a rel

You need both technical and non-technical management skills, and if you can't get both in the same person (likely!), you need the people from each side in a relationship that's based on trust and recognition of each other's expertise. Too often these relationships break down and become adversarial, to the detriment of everyone involved, and of course the project.