Moats

Many successful orthopedics companies create moats to give themselves a temporary competitive advantage.  These moats are thought of as "defense" like a moat around a castle, but moats can also be used for "offense".

"Moats can be both defensive and offensive weapons. In defense, they could be used to force the enemy to attack in a particular spot such as the castle's most heavily defended area. But a moat might also allow the castle holder to hold one part of the line with fewer men while allowing a sortie (made larger by less defenders needed) on the besieging forces. A great moat...