It doesn't necessarily need a fix, but it adapts to new situations. Something that would make perfect sense to me, whether you're an athiest or a christian.
I think that it's pretty obvious that evolution is real. Generations of any being always seem to adapt to circumstances. Small things that are pretty obvious, even, like dogs missing the claw further up their leg or people just getting bigger. The body itsself evolves during a lifespan. From little things as building up immunities to diseases from, obviously getting older. It perfects itsself, if you will, if you're a tabula rasa guy.
That doesn't mean that there is no God who created mankind and what not in the first place. From what I've heared, the biggest missing link is still that between nothing and a cell. A cell has quite a few parts, something which, for as far as I know but I could be wrong here, still has no explenation.
I think that they go hand in hand pretty well.