I have mild executive dysfunction that only seldomly interferes with my work. A strategy to defeating "Jim" as the article defines him, for me, is I often have trouble completing tasks if the goal/task is too broad. Going with agile methodology terms, if something is assigned to me that could be recategorized as as an epic with a bunch of sub-tasks or stories, it's very likely I procrastinate on that task, because I am not easily able to envision the series of steps to accomplish the larger goal.

So, I keep notes and to-do lists. I try to break tasks into as small of sequential tasks as possible, and then go back and prune this list throughout the week/day/hour, depending on how urgent it is and how bad the procrastination is.

Sometimes these tasks are extremely simple. As simple as "turn on your computer" sometimes. Completing them and checking it off gives that little dopamine burst and the confidence to continue the task. All you have to do is make sure that your smaller tasks are organized in a way that allow you to complete the larger goal (which admittedly isn't always easy).