David Vincent hasn't given up being an architect after all. Carver hired him as an architect but of course this is an excuse for Vincent to watch Carver's oil fields. At least Vincent has some income to continue his quest although I'm surprised anyone would hire him at this point.
Simone Carver is pretty quick for an old man. From the time when he walks out of the study to get dressed until he walks back in fully clothed is less than thirty seconds.