- as possible.
There are no easy answers to the immovable deadline. As mentioned, sometimes its better for one’s reputation to politely decline an opportunity that seems like you will need to push many barrels up a hill. However in other cases, with some creative management you might get closer than you think to a quality delivery.
As mentioned, some of the ideas here may need to be tempered to your particular environment and/or application. Nearly always you will need to deploy combinations of them rather than the odd one here and there. Remember to keep setting and resetting expectations both upstream and downstream, no-ones like surprises.