Everyone knows about the many many penalties google can apply to sites. Whether they are algorithmic or manual the list is endless of ways you can get kicked.
So the google setup could be described as their core, now hummingbird, creates the serps. Then a whole host of addons, penguin, panda, -whatever, manual, etc etc then go through it and demote anyone who fits the bill.
The question is this, does anyone know to or heard of any way in which they do similar in a positive manor to say promote a site which may not have been given a fair evaluation by the core? Or is their entire philosophy about negative action?