‘We made the best decision we could given the information we had at the time.’

And it’s possible that you made the wrong choice, or that you didn’t pick the best option out of the ones that were presented to you…

However, if you look at the first line…

You could only work with what you possessed at that particular time.

Therefore, if “at the time” is constantly limiting the ability to make the best decision possible, the temptation would be to simply postpone the decision and collect additional information so that the pool of information available when it comes time to make the decision is larger.

But unfortunately, life doesn’t work like that. There is insufficient time, and the decisions at hand are far too important to continue putting off.