If we accept that God created us with particular strengths, then we must also accept that He created us with some particular weaknesses, if only by virtue of the fact that he didn't strengthen those areas. Note, I'm not talking sin, here, but weaknesses.
Paul said he actually boasted in His weakness.
In 2 Corinthians 12:9 he said, "He [God] has said to me, 'My grace is sufficient for you, for power is perfected in weakness.' Most gladly, therefore, I will rather boast about my weaknesses, so that the power of Christ may dwell in me."
Another way to say this might be that our weakness is like an empty glass and His power is what "adds what is yet wanting in order to render a thing full" (quote from the lexicon for the Greek word for "perfected," on blueletterbible.org).
Our weakness allows Gods power to be manifest and shows that He is active, by working through us despite our weakness. To ever imply that weakness is sin or demonstrates lack of faith would be ridiculous. In fact it's what opens the doorway to use our faith.
I don't think it means that our weaknesses will necessarily become strengths, either. We will never all be good at everything in this life. Never. There are people who seem like they can do it all, but what that means is their weaknesses are more "under the surface." They have them, no doubt, because we all do. We can't see what goes on behind the scenes or on the inside of a person. So, let's not compare ourselves to one another.
It's all okay, though, because God will work in us and through us to make things happen, even if we never overcome our weaknesses in a visible way. He isn't limited by us except when we refuse to follow Him.
I'm not afraid to admit I'm the weakest of the weak in many areas. And I, too, will choose to boast in my weaknesses if that's what makes room for Him in me.
MY NAME IS ASHLEY AND I AM WEAK.