This is a very interesting discussion. Seems to me there are three options here:1. Just a good business analyst (who does nothing outside the box)
2. A 'Jill of all trades' who is (presumably) a 'good' BA as well as skilled in other areas, and willing to apply those skills
3. A Master of all trades who is brought in specifically because of the multi-skilled nature of the work.
The first is typical of huge organisations. I once worked for a very big outfit who had twelve different silos for their 'architects'. Another one has two guys in a basement who did 'disk-as-a-service'. All roles are highly defined, and anything outside-the-box upsets and aggrieves the organization.
The second is a must-have for small outfits. We had a client that we did a bunch of jobs for, over the years, and they had maybe a couple hundred employees. Their 'DBAs' did a host of tasks apart from DBA, simply because there was no-one else. Working-to-rule is not welcome here.
The third happens in some specialized situations. Here's one: we create business intelligence programmes for our clients. This includes training and mentoring client staff in all aspects of the work. A priori, we have to know the wholes spectrum. When we're done, we've passed on those skills to the very few client staff involved (typically less than a dozen). BI is intrinsically a multi-skilled environment, requiring a combination of people skills as well as technical ones. This case is not common (but it's a ton of fun!).
These 3 cases correspond to 3 of the Gods of Management (Charles Handy). In an Apollo (role culture) organization, the culture is a bureaucracy that bases its approach on the definition of the role/job to be done. In a Zeus (club culture) organization, power flows from the top, and official titles and job descriptions don't mean very much at all. Small and family firms are usually like this. The Athena (task culture) is focused on product delivery, and the work itself is the leading principle of coordination. You find this in consultancies, and self-contained bubbles within larger organizations within larger outfits - such as the business intelligence team.
FYI, there's a fourth God: Dionysus. The existential culture exists where employees see themselves as independent professionals who have temporarily lent their skills and services to the organization. This happens in a profession firm (e.g.) legal and academics in universities.
Question is: what kind of an outfit do you work for, who is your God, and what happens when your God gets offended?