And just to add to my previous post, when You think about a scenario always make sure that it does not look like a typical "sim stuff" scenario, with unrelated failures and weather turning from light winds to tropical storms everywhere and no ILS for 1000 nm. If You are looking for decision making, You want to ensure that the crew always prioritises safety and the commercial aspects are taken into account only if they do not degrade the safety level. Think about what would You debrief a crew that chose to continue to destination after suffering some tech problems leading them to fly a manually flown NPA at wx minimum, for example.