Use of the best project tools and techniques do not make a successful project, the education and motivation of the people make the project work. Alistair provided a nice analogy for this:
"Kind of like giving me, a non-fighter, a sword to defend myself against a trained knife fighter – I know I’d be the one getting cut up, no matter the length of the blade. It’s not the blade, it’s the skill of the wielder that matters."
See: Why cant people deliver?