Absolutely necessary in a solo project, but in a team it is enough if a few members, or really only the leader, is good at that (as long as the leader is somewhat competent and has some cat-herding skills to keep everyone on track).
Keep things really small. Small projects you can pull off in a few days and then move on. The kind of scope you'd do for a uni trimester for example. I used a lot of my uni coursework to build small game(ish) projects around them