The same benefits could probably be achieved by maintaing your current habits and then increasing sharply your caffeine intake at times when you need a boost. It's all relative, right?
Caffeine's main effect (though not the only one) is as an adenosine reuptake antagonist. That means that it makes it harder for your body to re-absorb adenosine in your bloodstream. Wikipedia has more detail, but effectively, your body will adapt to regular caffeine intake by increasing the number of adenosine receptor sites. So in the morning, when there is very little adenosine in your blood to begin with, more or less caffeine will not have much effect. But after you've been awake for a long time and there's more adenosine in your blood, increasing the amount of caffeine will not have as much effect because your body already has a lot more receptor sites, it's got some resistance to the effects. But decreasing the amount of caffeine will cause a "crash" where your body starts taking up lots of adenosine all at once.
So, keeping a baseline level of caffeine in your system causes your body to become resistant.
