I want to know the answer to the following question:
What was a key factor in Frossard's disasterous retreat to the south?
All the background I'm provided with is that "Seriously flawed communications between Frossard and those in reserve under Bazaine slowed down so much that by the time the reserves received orders to move out to Spicheren, German soldiers from the 1st and 2nd armies had charged up the heights.". Is that enough to answer the question?
Answer: yes