We don't have cross trained CSR at MKE. Say what you want to hear or be told but they are getting to be a pain in the butt because we're understaffed to support them, they are always having to swap crews..go figure and they never are in gear to get out early, they are always barely on time, never early. I don't know whether it's a company policy but they the pilots need to get all the but the checklist items done up to "Before Start". Every flight I push, they are always starting from the very first checklist item after they close the door.