The basic strategy of the game is to threaten to double your opponents, by having them catch both discs at the same time. This is typically achieved by throwing the first disc with a high curve and somewhat later throwing the second disc hard and straight. They can escape this situation only with great difficulty.
The first task of successful play is to be able to keep the disc in-bounds. Use high, skip curve flights and aim for the middle of the court. This will prevent the disc from rolling out-of-bounds. Also arrange for one team member to cover the front of the court and the other, the back portion. The back player is also responsible for deciding how the team will try to escape doubling attacks. Good communication between the team members is essential.