What determines the success of Agile Release Trains?
In my experience it is the tolerance of organizations to embrace failures as opportunities for growth and learning, which hold equal or more weight than the successes that we also need to sustain. I have had the pleasure to be involved on numerous ART launches and implementations, all of which made continual improvement towards increasing predictability, alignment around value and customer centricity, and limiting WIP at both the Team and Program constructs.