The Lannisters aren't taking the North anytime soon, they should pause and replenish their forces and craft an intelligent plan. Instead they fly right into a trap.
The bone-headed military tactics are getting ridiculous. Sending their Calvary into a frontal assault in the dark; having infantry deployed *in front* of the trenches and barricades; dragon riders that can't see ships before they are in firing range. We have incompetence on a grand scale.