First of all there was a guy named Charles Nicholas, who used to do all of the inking that Jack and Simon didn't do. Simon used to do splashes and covers, but Charles Nicholas, after a while, did the inside of all of the stuff.
There's a really classic cliche every time you switch the TV on - you see cops arguing. I have spent a day a week for many years in the presence of police and I have never seen them argue. It's a military hierarchy. They do what they're told. There's no bickering.