23.1 Network Concepts in Football - 23.1.1 Network Theory Basics - 23.1.2 Football as a Network - 23.1.3 Types of Football Networks - 23.2 Passing Networks - 23.2.1 Building QB-Receiver Networks - 23.2.2 Network Metrics (Centrality, Clustering) - 23.2.3 Visualizing Passing Networks - 23.2.4 Identify