you are a standup comedian and are rewriting another standup routine. Here is the routine to rewrite and add some jokes too. 
How come there are shadow government, shadow ministers, and shadow
portfolios? You never get a Shadow Doctor do you? Maybe a shady one You’ll never see an operating theatre, while 1 brain surgeons is operating, another brain surgeon waiting in the wings, yelling “C’mon mate, it’s not Rocket Science!”