The lesson of soccer is that individual effort will often suffice when things are relatively easy. But in order to surmount the more difficult challenges, you will almost always need reliable teammates of one sort or another.
I assert the same is true in development efforts. A single developer working alone can do good work, but a team of frontend devs, backend devs, devops, and DBAs can do stuff that is truly amazing. Combine your comparative advantages instead of trying to do everything yourself. Via Vox Popoli: Calcio is life.