In all my previous companies whenever we earned more than expected from a given project, we'd routinely analyze it and it was our job to make sure we can somehow repeat or benefit from this lesson for the future. In the same way, whenever there was a significant drop, it was our job to make sure we know the reasons behind it and implement preventive measures if applicable. The only factor that changed was the level of 'why?'s asked.

I can't imagine it's any different in Citibank.