Throw massive piles of cash towards Moody and hire him away from SL. At least I wish Pakistan would do that!
I hope SL holds on to Moody.
Besides, I wonder if Moody does not think that not getting the Indian job was now a blessing in disguise. IIRC John Wright had to climb mountains to even begin to get the processes he wanted in place (and he had an able captain for that task in Ganguly) but eventually did not totally succeed. I also believe that mental exhaustion was one of the reasons he called it quits earlier than he may have wanted to.There is only so much you can take.
The point is that a coach is only one half of the equation. The players have to want it too, every day, every hour, in training, and of course in the field. I am not sure if the Indian players approach their basic drills with the same degree of intensity that players from other sides too, and that is something that comes from within - coaches have little control over player desire. Going through the motions simply does not cut it.
In this regard Sri Lanka and Bangladesh do far better than either India or Pakistan - though maybe not as much as Australia or South Africa. In either case, the culture of both of the smaller subcontinental side reflects a greater desire from top to bottom, senior to junior, that is rarely seen in the big two - especially India. Whether this is to do with culture, or environment, or perception of oneself as small and thus having to constantly prove oneself, or a combination of these and other factors I do not know. But it does exist, and is a problem for India that will always militate against it doing justice to its talent.
[Edit] I see Goughy has already touched on and expanded on what I have suggested.