Considering just the Steelers game, we only punted once in the second half. That too was probably only because Knox dropped a wide open pass, and Josh took a weirdly bad sack, so we were sitting at like 3rd and 17.
I really think if you want to pinpoint the main issue it’s that the players need to come out of halftime with more focus and energy and urgency. Start as fast as you do at the beginning of the game.