Hey there Buffy, My Dad had a small pond when I lived at home that was only 7 foot in the deepest corner by the dam. I sank a huge cedar bush that we had pulled up, right in the deepest part, but I could still swing a minnow/cork rig to it from the bank. It was the only structure in the pond and I could easily catch crappie there after that.
I would have to agree to place some in the deep water but some on the shallower creek channel wouldn't hurt either.