Transaction Mode
This is similar to the concept of weak ties theory. The danger of relying on personal connections is that you may become lazy in your efforts to find the optimal person for a task. Choosing someone because "they were recommended by a trusted contact" means abandoning the process of selecting based solely on ability from an independent pool. In other words, networking requires effort to meet multiple people based on current needs, but there's no need to maintain strong connections unless your community is small and tight-knit. Honestly, modern networking is often used less for necessity or utility, and more like a luxury brand, name-dropping to show off "I know this person too."