I may be entirely wrong, but I don't think the analogy holds, as friction is what makes the football spin.
Maybe a better one would be a spinning ice skater: going from wide arms to closed arms increases angular velocity.
Indeed consider the ingress mass and the neutron star as a single system, ingress mass gets closer (as the ice skater arms do) and angular velocity increases. Collapse is what makes it spin faster.
Maybe a better one would be a spinning ice skater: going from wide arms to closed arms increases angular velocity.
Indeed consider the ingress mass and the neutron star as a single system, ingress mass gets closer (as the ice skater arms do) and angular velocity increases. Collapse is what makes it spin faster.
(but again I may be wrong so please correct me)