That will do just fine. That is what the weekend is about. But you will be surprised what headway is made when the communication works. And it takes quite a bit of practice to get the communication right.
Friday night everyone comes in nervous and stiff. Saturday at noon, they are still wary of each other. By Saturday dinner, the mood is lifted significantly, and couples are starting to walk with arms around each other. Sunday at breakfast, many couples were talking about how they finagled sex in the single beds. By Sunday at noon, most people in the room are looking happy and smiling at each other. (That's most people, not all.)
I am very bad at predicting who will do well and who won't. If your wife does not cooperate and do the exercises as instructed, you should go talk to one of the team couples. They will talk to you one on one and explain things. It's important to get help if she doesn't cooperate, because the program can be quite painful if one spouse chooses to continue fight instead of working on communication according to the rules.