"Agile decision making" may not be easy, but is a must for a pilot.
It might be an early conclusion, but, I think Pegasus should concentrate on how to improve their cockpit resource management.
Taking into account the first runway excursion in TZX about a year ago, and last night's incidence, there is sufficient info that leads me think this way.
The one in SAW that occurred a couple of weeks ago may be a different case with different reasons behind it, though.
Of course, like in majority of incidences, there are multiple factors.