Only half covered here was the use of archers and the double indemnity they provided:
https://www.youtube.com/watch?v=LVuVtP_xepU
The ground would not have been very muddy in 2 hours of battle in October although we don't know the crop recently harvested we know it was covered in a carpet of leaves and two days worth of rain. Not a lot -unless the previous summer was wet. So not much worse than a football field, despite what the expert said.
It was the stadium /domino effect plus the French discounted the archers their bodkins being inferior to the French armour and the weather being adverse to the heavy use of the bows. If the strings snapped at full pull, the bow would break. And a wet sinew would soon stretch and weaken if retightened.
As you say the cavalry would not have frightened the English, they knew from Alexander's time that the spear was superior and there was nothing stopping the archers using spears. Perhaps being used to attract the cavalry into the trap because they seemed undefended and afraid to use the full power of the bows?
Biting the hand that feeds IT
