Does anybody know how much of a force the GC left at Griffin's Roost? Or if they split forces and held a reserve behind at another castle they took? I can see Connington ambushing the Tyrell force like mentioned earlier only to then fall back on Storms End as the Tyrell force pursues just to be stuck between Storms End and the reserves that would cut off their supply train and box them in. That is considering it is a large enough force they can't outright defeat in the field and no one turns cloak.