From what I
know about UORs backstage area (unless anything has significantly changed over the last few years):
The main HR building (including benefits, recruiting, payroll, training) is located directly behind Diagon Alley. It is a single floor building and is cramped, with small offices and cubes. This is the same building you, as a visitor, might enter if you've ever interviewed or auditioned for a position (there's a Woody Woodpecker statue to greet you).
I am unsure what kind of hr would be located behind LC (as was mentioned in this thread), but it's possible they have IOA specific management and generalist there. I know that building but don't actually know who is in there (maybe "operations"? Which would make sense why someone called it hr I guess).
Most of the backstage buildings are old (though not as old as Disney), with updates few and far between. Some of them feel like trailers (many of them actually are) or repurposed for a use other than what it was designed for. IMO they pay a lot of attention to customer facing areas and neglect backstage.
A lot of backstage could be relocated off-site similar to Universal Creative (UC). For example, marketing, accounting/finance, Dave School, etc., anything which doesn't need to be in direct contact with the rest of operations. But the issue is that these departments would need to travel to site A for things like training, which means l&d would have fewer people attending their events. (This may become a big issue when Epic Universe is developed.) These departments start feeling disconnected, which is not what UOR wants (aside from Creative, which they've purposefully disconnected).
One idea would be to relocate pretty much all backstage (aside the essentials) to a single location, similar to the Dr Phillips idea. But I think people have become more doubtful on this.
The other idea would be to use the space they have, just build up; bulldoze their old single floor buildings and trailers, and build multiple new 4 story buildings. They already have some taller buildings (like where marketing/executive is), so keep those and replace anything with just one floor. They have
tons of room back there if they just work with what they've got.
(Side note/edit: IMO UOR should work quickly on this. Orlando is competitive when it comes to employment, and it's not just for service jobs. UOR has to compete with other large employers like
EA and
ADP, which have recently ramped up employment and can offer beautiful corporate offices.)