I'm looking for the title of a short story that I would like to offer as suggested reading to my kids.

It was in the late 80's early 90s when I first read it. English was the language. It may be part of a collection.

From what I can remember, the premise is that humans were at war with space aliens. These aliens decide to start peace negotiations. Hoping to get beneficial terms they pick a distant unimportant outpost, knowing that the official diplomats would take a long time to arrive. It falls upon the staff of outcasts and screw-ups at the outpost to negotiate. The base commander uses the psychological traits of his staff to assemble a negotiating team.

One member of the negotiating team is someone who is paranoid. This person uncovers tricks and traps in the Aliens' proposals.

Another is someone who finds it impossible to make a decision.

When the official diplomats arrived, they were astounded with the job the staff performed negotiating a fair treaty.

This story helped me form an attitude of "Do the best you can with what you have."