The Big Boy Long Coal Delivery

This segment in journey 4 is lame. Do you have to have a mechanical engineering degree to pickup coal cars at Blue Sky Depot? Attempted it 5 times. Slow and drawn out. Issues with switching junctions. Hitched coal cars then could not get green lights after I had all coal cars to get caboose. WTH?

JP-UP about Train Driver Journey 4 - Introduction to Steam