Btw this is important your mood during active work hours didn't impact at all at you job performance. It might help scoring the gold score faster by giving extra score(untested). In the end as long as you manage to gold score, focused mood didn't impact as much so you don't really need to go out of your way to fill all workplace with focusing decor. For success in interaction during the work, this could be true but for statement that it impacts job performance (for active career that you join obviously), my test has already proved otherwise.
The reward trait entrepreneurial is indeed unreliable but if it triggers, it will help your sim to get promoted.