Boring & Craddock, in their People's NT Commentary remind us that the "you" Paul uses is plural. Paul is still talking to "y'all." Paul is talking to the organized community of folks called out from some other kind of life.
I'm struck by the "one body" part. I get the metaphor. But, I am even more impressed with the "members of one another." I am not sure what to do with this metaphor, but I am going to think about it some more.
Paul listed the kinds of gifts that were needed in the church of his day. Consider how timely his analysis still is: prophecy (he's not talking about fortune tellers); ministry; teaching; exhortation; giving; leading.