Start shallow, work deeper.  Walleyes will still move shallow to feed at this time of year.  If the wind has been steadily blowing in the same direction you can find walleye pretty shallow along the windward chunk-rock shorelines.  I've caught 'em as shallow as 2 feet.  Usually they are a bit deeper though, in the 5-10' range under those conditions.  But don't be afraid to start by pitching a shallow crank right up close to shore.  If you get nothing but minibass, work deeper until you hit 'eyes.

Early and late, also work those shallow foodshelves.  Reef tops or any shallows adjacent to known walleye holes.  I like to search by trolling xraps or husky jerks until I get into walleye and then cast with cranks for more.