I don't like Cummins but I will admit he's a devious cunning bastard. Boris surrounded himself with people that made up for his own weaknesses, you only need to look no further than Gove for evidence of that, even he had made Boris look a total fool in the past, by stabbing the blonde bombshell in the back.
So in someways Cummings was an ideal fit. Afterall the charm of the ex London Mayor wasn't going to work on the EU. So Boris needed that devious cunning bastard, and it worked, the only problem is the real problems begin when the worm turns as it later did. I've just no real idea, what occurred to bring it to this.
If I was to employ Cummings, I'd have to be aware at some point he's going to stab me in the back, and I could never work with someone like that or little snitches come to think of it. I believe in keeping your mouth shut..
I think once Cummings has served his purpose they should chuck the rat in the dog bin. He's probably owed a smack in the mouth from both sides of the fence to be fair.