High energy descents & approaches

[AA757]

Hello everybody,

I'm currently working on a project for my Master's degree dissertation.
I'm looking to optimize the energy monitoring during descent and approach, my question is simple. In case of a missed approach due to a high energy state (coming in too high and too fast), what are the origins/scenarios leading to a high energy approach.
I've thought about:
-if you are vectored and too high/fast, the distance leading to the runway may be drastically reduced, leading to a high energy state.
-A descent that is initiated too late.

What other scenarios would you suggest?

Thanks

AA757