What we did at Grupo ED was really satisfying for me, because we had no plan time variations, only few incidents that were resolved using overtime work. By the way also script free project.
So I've replicated this model in subsequent projects.
What I tried to do now intensively on new projects is; give confidence to IT Staff, sometimes they never stopped seeing Netsuite as a threat that jeopardized their jobs, when the company tried to implement new modules, that fear causes an internal boycott to not succeed.
Cloud Computing is a global trend that generates company savings, change is imminent! Is just a matter of time, IT pros must quickly adapt to change, and become cloud solutions integrators.