To drink liquor, it is a problem that is causing the conflict. If Laura doesn't have alcohol or did she go out with people at work. None of these events occur, and Laura must change job or awkward per Matilda.
The drinking of alcohol is a problem that causes the conflict. Laura if she does not drink alcohol or go to work. These events would not have happened. And Laura did not have to change jobs or to embarrass Tim.
Drinking alcohol is the problem that caused the team conflict If she doesn"t drink alcohol or you don"t go out with someone at work. These events would not happen. And don"t make Laura to change jobs or uncomfortable to Tim.