If you're moving to a new open space office that looks for a visitor to be fantastic but is a pain to actually work in; if your company hires like crazy without a good idea of what new people will actually be working on; if a CTO that has been on-hands becomes distant and hires a level of middle technical managers — all that means that the company is trying to inflate it's value and be bought. Not necessarily a bad thing, but you can count on the culture shift pretty soon.