I think it's important to make it clear when you were against a plan that ended up failing exactly how you said it would. Because otherwise you can end up takin

I think it's important to make it clear when you were against a plan that ended up failing exactly how you said it would. Because otherwise you can end up taking the blame. No one is going to try to pin it back an you as not arguing well enough. If you're not a jerk about being right, it could even benefit you since it will be on peoples' minds to not tune your objections out next time and to listen to your alternatives.