When is the right time to create the role of the Solution Train Engineer? When a large Value Stream has enough Agile Release Trains to Launch a Solution Train When the second Value Stream is launched...

When is the right time to create the role of the Solution Train Engineer?

When a large Value Stream has enough Agile Release Trains to Launch a Solution Train

When the second Value Stream is launched in a Portfolio

When problems coordinating Agile Release Trains are identified in the Inspect and Adapt event

When the first Agile Release Train is launched in a large Value Stream