In my experience "hiring a team" is closer to consulting (maybe long-term contracting) than it is to literally taking on a team of W2 contributors. It's not that it can't happen, it's just how I see it manifest itself the most often.
A group of employees being hired as a team need to 1) work well together (so that bandwidth is more than the sum of its parts), 2) complement each others' skillsets to reduce skill gaps and 3) all be more or less looking for work at the same time.
Number 3 is what's really important, but number 1 is also important because a team being hired all at once is (presumably) a team where each member is more or less equal in productivity, but not necessarily redundant. In my experience, that typically defines something closer to a consulting team than an organizational team.