They should just wear their old uniforms, but their coach should have the team trainer secretly load the new ones up. Then, at halftime when the team is down by 32, their coach can give them an inspiring speech and tell them a new half means new uniforms. Then the team would all get together and go "Buff, Buff, Buff, Buff, Oil Oil OIL OIL GOOOOOOOOOOOOOO North Dakota!!!!"