The Running Game in American Football is a term used to describe the overall success of rushing plays of a team. While most NFL teams emphasize the pass, being able to run effectively is a vital aspect of a team’s offense. College teams focus more on the run, with some teams rarely ever deciding to pass the ball.
I think ‘running game’ is a compound noun with ‘running’ being a gerund.
I think he means a game that involves a lot of running. Playing basketball involves almost constant running by all players.
Running is a gerund acting as an adjective. It modifies game.
@Tolsten
In American football, the “running game” does not refer to the game itself. It refers to one aspect of the game. It’s counterpart is the passing game, which comprises most of the game. There are other parts of the game, but those two things make up the large majority.
A verb appearing in the 'ing-form’ can be either a gerund or a participle. While a gerund functions as a noun (verbal noun), the participle as an adjective or as a verb (participial verb).
I think the examples below illustrate it.
Running is a good physical exercise. (gerund/verbal noun)
Do not stop the running players. (adjective)
When called, the kids came running. (participial verb)