I'm sure this won't lead to any disagreement...
From the letter, "Delta Crew Resources projects pilot head count to be DOWN over 11 percent by FEB 2013"
Delta Pilots Association - DPA News - New Contract Efficiencies Create Massive Job Losses
It points to docs available on DeltaNet so I went to the source and downloaded them myself. The only difference is that in the title of the doc it says it's for "requirements" and "not a headcount." The docs don't have anyone's name on them for verification of the author. So what's the "truth"?