I’ve seen this pattern play out a few times, and I have to believe there is some formal terminology for it.
Imagine two friends (or coworkers or husband and wife): one person volunteers to do an undesirable task. Once complete, if the task is done imperfectly (potentially due to parameters beyond control of the first person), the second person is critical and claims this wouldn’t have happened had he/she been in charge.
Example: A couple decide to install new wood floors, which requires finding contractors, negotiating, scheduling, etc. The wife volunteers, and as the project gets close to finishing, there is an unexpected supply shortage, and the project will be delayed a week while they await new supplies. The husband gets upset because now their house looks a mess when visiting family is in town, and blames his wife for mismanaging the project, and claims this wouldn’t have happened if he were managing the project.
This sort of behavior seems to reflect some narcissism and a lack of empathy, but I’m curious about terminology for this “Monday morning quarterbacking” time behavior.