The 3 ingredients of a problem (and solution)

The Daily Drip
How do we change outcomes or results?
We change some or all of the ingredients of the problem:
The environment we're in.
Our mindset or attitude.
Our expectations.
I left out skills and capabilities because unless we're delegating that work to an outside specialist, we've got to develop skills ourselves, which usually takes time. This is still a viable option, but the solution must be in line with the timeline of personal development, which sounds a lot like setting expectations.
What else do you change when faced with failure or an impossible task?
I'd love to hear your strategy.