1. A method for team analytics context graph generation and augmentation, comprising: extracting, by a processor, a set of relevant features from a received message; predicting, by the processor, a context graph corresponding to the received message being sparse based on the extracted relevant features, a context of the received message being indeterminable from the context graph in response to the context graph being sparse, wherein the context graph is a sparse context graph in response to a number of nodes and associated edges of the context graph corresponding to the received message being below a preset threshold number of nodes and associated edges; generating, by the processor, an augmented context graph in response to the context graph being predicted to be sparse, wherein the augmented context graph is generated by adding a quantity of nodes and associated edges to the sparse context graph such that the context of the received message is determinable from the augmented context graph, wherein generating the augmented context graph comprises: extracting data from the received message, the data comprising subjects and terms in the received message; automatically generating a set of queries using the subjects and terms extracted from the received message to generate a list of selected users with a similar expertise or content corresponding to the subjects and terms; generating the list of selected users based on the set of queries; determining connections between each selected user of the list of selected users, wherein determining connections comprises searching a cache comprising previously generated context graphs and sub-graphs; translating the selected users and connections between the selected users into nodes and edges of the augmented context graph; building the augmented context graph in a data structure of parent-child relationships from translating the selected users and connections into the nodes and edges of the augmented context graph, the context of the received message being determinable from the augmented context graph; and presenting, by the processor, the augmented context graph.