Get all the information you can from every source you use. Use contacts to gain contacts. Obtain all you can from those who can help you be better informed or prepared. Observe closely to see what people's abilities, strengths and weaknesses are. Involve people in what they like, are good at or have an interest in.
People are productive when doing what they do best.
Be aware of what else people have to do. Don't overload them. Don't expect more than they can do. Be aware of the problems, frustrations, difficulties they are having, then help them or relieve them from the responsibility. Treat all people the same.