The real estate seating assignments aren't necessarily correlated to their job roles.
A lot of the chip design teams are quartered in IL, for example because that's where a lot of the labs and prototyping machines were installed and they're a pain (and costly) to move compared to a tax accountant or privacy lawyer with a MacBook who gets told "here's a tote for anything that isn't your MacBook, pack up your desk Friday after lunch, on Monday report to this new desk -- our movers will bring your tote to it."
With big companies... they'll inevitably move your desk as they consolidate real estate leases at some point-- but it's rarely correlated with your job performance or relevance to the team.
Some of the most critical teams at our software company, have the crappiest offices because their work can't be interrupted for moves at the height of tax season... this summer we can finally shift them.