Question: The head coach of the Washington State Cougars football team helped popularize what offensive scheme?
Sentence (from "1988 Washington State Cougars football team"): In their second season under head coach Dennis Erickson, the Cougars compiled a 9–3 record (5–3 against Pac-10 opponents), finished in a tie for third place in the Pac-10, and outscored their opponents by a combined total of 415 to 303.
Relevant evidence: No