At Ocean Tomo, our pharmaceutical practice has seen substantial growth within the last few years. In addition to more traditional damage expert opinions, clients are increasingly asking Ocean Tomo experts for commercial success opinions. Here, the issue of nexus typically becomes the battleground that the commercial success war is fought over. Delving into commercial success early is essential to developing a discovery strategy to prove / disprove the tie between any success and the claims at issue. This is especially true leading up to depositions; there is no substitute for preparation focused on the key nexus issues. The earlier that the team – lawyers, technical experts, economic experts, and the client – can define the issues and create a plan, the better the odds of winning the nexus fight.