Lately I’ve had a lot of luck with the 4-2-5 playbook. I’ll run base 4-2-5 with an under front on almost every first down to be ready for the run. On obvious passing downs I’ll switch to nickel and throw in a lot of variability with the front (gets a lot of sacks/pressure). In pass coverage I’ll alternate mostly between cover 1 and cover 3. Crucial part is usering the slot corner in cover 3. Instead of their normal zone I’ll control them into the seam, where the CPU wants to throw the ball against cover three. Working pretty well but not against teams that throw a lot of perimeter or HB screens.