They will move out to a better comfort zone and stage till the shallow warms back up. Many tournaments have been won fishing on the bank in very shallow water in the winter. Tackle can vary from lake to lake but suspending baits, soft jerk baits, jigs, spinner baits, all can produce in the winter months. Look for deep water close to shallow in the back of creeks. Work lay down logs, stumps, grass lines.
Boat docks with brush can harbor fish.
You will have to cover plenty of water but work it thoroughly. When you come in contact with a fish look at the structure you caught the fish from and look for more like it. Work this area good before leaving as there maybe more fish present. Don't be surprised to find fish stacked on a shore line in some of the coldest temperatures. The wind blowing into a shore line can warm up that water a couple of degrees and hold the fish.