A few years ago, I was lucky enough to spend some time in the Gambier Isles in French Polynesia. The reefs there have ciguatera which makes many species of fish poisonous so the best way to catch your supper is to spearfish for the species that are safe. 

In sales, people often speak of hunting accounts and yesterday, I heard my colleague Ross Hitchenor speaking of creating targeted content to influence individuals as "not casting a net but spearfishing".  This really resonated with me because spearfishing often involves putting a whole afternoon into pursuing a single big fish, which is precisely the opposite approach to trawling where many fish, of many types, enter a net. 

"Casting a wider net" is an analogy used in marketing automation to describe how to get more people into your sales funnel, it suggests that a larger net will bring more people to your site and hence, in time, more qualified leads will result. 

However, with Expert-to-Expert or strategic Account Based Marketing, the net analogy makes less sense; in these instances, a large amount of time is put into influencing a small number of individuals, just like spearfishing. Content can be created specifically to influence one individual; ignoring less valuable opportunities. With E2E marketing, there aren't always more fish in the sea.