How much effort would you put into a major project if your boss had two weeks left on the job and your new boss was likely to want a wildly different approach t

How much effort would you put into a major project if your boss had two weeks left on the job and your new boss was likely to want a wildly different approach to the issue? And what if your outgoing boss was ramping up the pressure to finish it ASAP for personal reasons? I think I’d understand if whatever you handed in maybe wasn’t your best work under those circumstances.