For once i would disagree with @franz. I would adjust the root depth of the dry zone to 3" or 4" with he crop coefficient back to 0.80 to start. This will change the frequency of the watering without changing how much water it gets per week. Your water in this zone is draining away rather than staying 6 to 10 inches in the soil for the shallow roots. You should also change the soil in that dry region to sandy, to better represent the rapid drain affect vs holding moisture.
In my yard I have a very small section of grass (5 ft x 8 ft) that is above drain rock, installed to prevent flooding on my patio, at the base of my yard that I have to keep an eye on. To keep from messing the rest of that zone up, I have to manually water with a hose or occasionally by turning the valve by hand (not via the app) to prevent the database from adjusting things.
For the wet area, I would pull up the grass in sheets or replace and adjust he soil to drain the excess away if it is an issue and small enough.