In doubles, attacking the net is a good strategy. What do you do if your opponents are better at it than you? Make them think twice about coming forward or poaching. Here's how. (It's a good idea to do this early, like in your first return game)
Hit a lob return down the line (over the net man). The server will have to get this and can't serve and volley.
Hit a hard return right at the net man. He'll remember that and think twice about poaching.
Use these tactics to throw off your opponents' attacking style, and put your team on the offensive.