dumb and energetic?

Someone once asked Napoleon how he decided where to assign soldiers. Napoleon’s reply was that it’s simple: soldiers are either smart or dumb, lazy or energetic.

• The smart and energetic I make field commanders. They know what to do and can rally the troops to do it.
• The smart and lazy I make generals. They also know what to do, but they’re not going to waste energy doing what doesn’t need to be done.
• The dumb and lazy I make foot soldiers.

But what about the dumb and energetic? “Those,” Napoleon replied, “I shoot.”