I'm not saying it's irrelevant at all. What I'm saying is that any results will be missing a major factor.
Point of interest- the bolded statement above that I quoted is actually not the case. Six months ago, it was the contracts that were going to be taken that went the full 30 days and the ones that passed did so very quickly.
Got it - very interesting how things change. My bad for misunderstanding! But yes, I work in field requiring data manipulation and its always a fools errand. Unless you understand the key drivers and get granular, trying to get down to causation or even strong correlation is near impossible. As you said, still fun to try and figure it out!