Just an observation. The best managers I've had, all had a very flat, neutral affect. In some sense, they had no personality, and I mean that in the best possible way.
They weren't necessarily using corpspeak, but their phrasing was always very beige. I think it helped to create a perfectly bland atmosphere, like a starbucks, where nobody necessarily felt elated, but at the same time nobody took offence.
The worst managers I had were usually deceptively jovial or unnecessarily brusque.