There are many different job-roles out there and it is hard to find out what these roles even are. It takes time for people, especially freshly graduated students and career changers, to find their niche. At some point almost everyone gets themselves into situations where they're not competent and then realize they need to either make a switch or get focused.

Rather than viewing such career-exploration failures as "fraud", as some are apt to do here, it is better for employers to take a more active role in developing talent and recognize that early career folks are going to be hit-or-miss.