The whole idea of "multitasking" as a skill is getting tired. It's the kind of thing they want in administrative assistants, customer service reps, and junior level IT. If you want to specialize and move up any higher than that, you have to master single tasking. C-levels, principal level consultants and other specializsts didn't get into their positions because they did a bunch of easy tasks at 30% efficiency at the same time, they got there because they could do the important tasks at 100% efficiency.