change their drainage to get that runoff moving...
That can help you get in to the field for harvest but it won’t dry out the grain.
Crops like corn and soybeans need to dry before you harvest. You need at least a good week of dry weather to get the moisture out of the grain. The dryer the better in October/November.
If you harvest to wet it can cause all kinds of problems like mildew and mold to just jamming up your harvester.
And if you take your crop to market too wet you will be penalized on the price due to high moisture content.
This fall was very wet and harvesting was difficult. An anomaly that only occurs about every 6 years for the last 5000 yrs.