Don't tell me you have another plan!
When our plans go wrong, our initial temptation is to do more planning. And when those fail, to do even more.
But maybe, just maybe, the way we plan is at the root of the problem. Mark Woeppel of Pinnacle Strategeies has a better idea: focus on more productive ways to execute operations, ways that can dynamically adapt to real-world conditions. (Disclosure: Mark is a client of mine.)