I have done this the last few years for my league draft. For example, here's last year's post: viewtopic.php?t=438317&hilit=wisdom+crowds
The concept is to aggregate/average out a bunch of projection systems to come up with a a new projection. This is based off the "Wisdom of the Crowds" mentality where predictions of a wide range of lay people are typically more accurate than any single prediction of experts. Fangraphs has been doing a lot, and every player page now has composite projections - unfortunately, you can't download them all, so I had to do it myself.
I would typically average 6-10 different sources of projections (Marcel, ESPN, Yahoo, CBS, Chone, Oliver, etc. etc. etc.) to come up with a new projections. It was a really time consuming effort to ensure every player's name was listed consistently, and re-order (and sometimes calculate) all of the categories on every set of projections.
Glad to say, that I don't need to do this anymore because other sites are finally doing it for me. I only post this in case someone comes in to FBC and searches for the WOC 2013 projections and think I died.
There are two places that are doing it:
1. Fantasy Pros - http://www.fantasypros.com/mlb/projections/hitters.php#
I like how they do it in that you can choose to not include sources you don't like (maybe for whatever reason you think CBS projections are crap)
2. Roto Champ - http://rotochamp.com/baseball/PlayerRan ... on=Catcher
You need to go to each position to download the projections here, and they don't show as many categories as FantasyPros does, but it should get the job done.
These guys putting this content out (for free) will save me at least 20 hours of draft prep this year. So thanks to them.