Game theory article from a professional Starcraft player/caster.
My little brother, quoting a noted SC personality: when you're ahead, get more ahead.  It is probably the most important strategic lesson in the game: if you have a temporary 5 pct material advantage, you can still easily get outplayed if you force a fight.  Better to turn that into a 10 pct material advantage, etc, and force a fight only after you've already won.The other game I play a lot of is League of Legends, and sadly the community around my skill level has not learned this gospel yet.  If it looks like we have 30 seconds of advantage, the team of 5 almost invariably either does nothing or goes for a decapitating stroke whose downside risk is loss.  A better tactic is probably "Get more ahead so we win the next skirmish, too, snowballing until we win by concession or overwhelming force."