I have had the procedure done, albeit in Australia, but am absolutely flabbergasted at what you describe.
When my procedure was done, the main part of it is measuring to less than a millimetre, exactly where the probes should be. I think I had over 5 CT Scans per side before they commence testing to ensure it works while you are awake. They test both left and right sides to ensure that the probes are exactly in the correct position before proceeding to the next step which is running the cables from the brain down into the chest wall and insertion of the stimulator under general anaesthetic.
To hear that your husband has gone under surgery a second time only to find that they are STILL not correctly positioned, rings HUGE alarm bells for me. I would ditch this Neuro in a heartbeat and look for someone who's reputation is spotless and has vast experience. From what you are describing, it sounds like he hasn't a clue and he should be avoided like the plague. It is hard enough going through the surgery once, but twice, then three times???
I hope you both get this sorted out, as I am sure once it is, you and your husband should notice a big difference. I for one would like to hear the eventual outcome.