Crappie move a lot in the fall and so should you. One of the best places to start is near spring spawning areas. Instead of getting super-shallow, work water that is about twice the depth of where the fish spawn. So if they spawn at 3 feet in the spring, start at the 6-foot depth in the fall. Use your electronics and test-fish to find the crappie.
Other keys include finding baitfish and cover. Keep moving until you find the right elements and you’ll find the crappie. Once found you can slow down and work the area. –TH