OP, this is the right tack to start addressing the cart's nefariously bad goalie AI. In stark opposition with your approach, in the vein of realism, it's hardly realistic to play a contest without a goalie or to mass down-edit one's roster for some competition v. the CPU.
Your idea comes tantalizingly close to revamping the goalie AI, so dependent on EA's source code but so much unobtainium. Since falling victim to the allure of the early series, it became a twisted dream of my teenage mind to play a capable computer.
Just to clarify, the smaller nets are featured on *both* sides of