All too often, if you are trying to get from point A to point B, speeding up, will get you there quicker. It's one of the first lessons we learn in life. And it works when dealing with things.
Unfortunately, when dealing with people, speeding up actually can cause the exact opposite effect, unintentionally. Because when it comes to people, as it relates to individual or organizational change - whether it's change, growth, or even learning "new" techniques or ideas - the quicker you try to move people, the slower the process goes. That is if it doesn't destroy it completely.
All the stages of change must be dealt with. They are part of the human experience - one that cannot simply be avoided, because its a great idea or because you are the boss. It doesn't matter if its the greatest idea and it's easier the new way or if you are the President of the United States, people must be given an opportunity to learn about and engage in the change process.
Sure, you may find that some may accept the change quickly. But there will be others that take it slowly or not at all. However, if you don't allow for / encourage the growth through the stages, giving each person a fair opportunity to engage in the process, learn about it, accept it and commit to it, you are doomed to take your accelerated efforts right into the wall of resistance.
Change takes time - give it time and you will be well rewarded. Accelerate the change too quickly, and you will face resistance and speed bumps / barriers - the likes you've never seen.