So here's my latest nerd problem with the last episode.
Tormund, Edd, and Beric get to Winterfell in the daytime with knowledge that the WW are 8-12 hours or so behind them. They know which direction they're coming from.
Why in Azor-Ahai's name would you not mount up your Dothraki screamers, give them dragonglass tipped arrows and send them out to scout the enemy numbers? If you see the dragon, you disperse in 100 different directions back to WF. Otherwise, you get true estimates of how many wights, how many giants, how many WW, etc., not to mention you launch a boatload of arrows into their ranks and thin them out before they get to your base? I hate being a book nerd right now.