Is that office of Warner's the one they used for the producer in Roger Rabbit? Sounds similar.
IMHO, the quality of Hollywood's product has been inversely proportional to the number of "suits" working on it.
Speaking of moguls, I just watched The Wings Of Eagles again, the story of Spig Wead. I'd forgotten John Ford had Ward Bond do a spoof of himself - it was pretty funny.
Not sure about Rodg.... they did use the lot for locations frequently. There's a pretty good introduction to the lot here: http://wbsf.warnerbros.com/indexvipredir.html
(check the links on the left) That VIP tour of theirs is one of the town's undiscovered gems. It doesn't have the entertainment value of the Universal tour, but for folks who really want to see a studio lot close up, it's a good opportunity.
I sure agree with your comments about the suits. At the end of my career, we'd tripled the number of people 'supervising' us with no net increase in the number of people actually doing the work. My work load had increased, though, because I had to spend a lot of time undoing the problems the 'suits' were creating.
One particular gal kept trying to ship the stock shots I was using for the whole season back to the supplier. It made no sense at all, since it cost us nothing to keep them. I finally issued an edict to the vault to run any order she gave by me first. For the rest of the season, at two week intervals, she'd order them shipped and I'd cancel the order. Strangely, it never seemed to occur to her to ask why her order hadn't been carried out.
Then there was the 'post production supervisor' who kept ordering copies of the finished show before we'd finished it.....
Did I mention I'm glad I retired?