Delays don't come into this, it is always safety first, take your time, we are professionals.
Setting up for different runways, come on, Cork only has two and again we are professionals.
Missed approaches, honestly if you are unprepared for one you should give up your seat as you are a danger. Any approach could become a baulked landing / missed approach. Don't just brief for the approach, brief for the missed approach and further to that say how you will achieve it and build a mental model so that you can do it from recall. A competent crew will come up with a plan before the event about what they will do when they have flown the missed approach.
If a Captain knows that he is to operate with a low hour or new to type F.O. he must take that into consideration and factor that into how the flight will be conducted.
As regards fuel pressures can I draw your attention to safe flight planning.
Again as regards alternates and weather its only a lack of planning that will get you into trouble.