Some of my favorite spawning areas for Crappie have yielded fish for me in the fall as well. Although they are not there to spawn, they will show up shallow at times especially in the evenings and bite like crazy. I don't mean 1 or 2 feet deep, but more like 4 to 10 feet deep. The last hour of daylight will yield fish if you go to a plastic lure with some orange on it.
To avoid confusion, I consider any water 10 feet or less to be shallow in our lakes around here. emoGeezer