Last evening Boris Johnson did what the UK Parliament had legally mandated he do. He sent the EU a letter requesting a Brexit delay. This is, of course, just one step in the UK Brexit story. At the same time, it’s a classic lesson in the bare minimum compliance. Yes, he complied with the law and sent that letter. He also sent another letting telling the EU that any further delay was a bad idea. And no one knows what he’s saying behind the scenes. But we can imagine. The lesson for all leaders is that compliance may not be enough. You need contribution or commitment.