This post is dedicated to Amos_thePokerCat. Amos was kind enough to drop a few links on me that strengthen my position on Pittsburgh's migration woes. I'm trying to exhaust my recent obsession with people moving hither and yon. As far as I'm concerned, the issue is settled... until the next comment or new report.
Stop worrying about the people leaving Pittsburgh. According to this study, "out-migration from the Pittsburgh region was lower than nearly all other regions of comparable size." That statement carries considerable shock value, even for me.
Pittsburgh obsesses the recently departed, unjustifiably so. The media coverage is largely to blame. Young people leave home, all around the world. In the United States, moving to improve is what defines us as Americans. As a recent article in The Economist (July 1st-7th issue, "Lexington: Pursuing happiness") points out, 40 million Americans move annually.
Get used to it. We are rootless vagabonds at heart.
My dream is to see Pittsburgh as the center of R&D on labor mobility. You are not going to see a long and sordid tale about the Phoenix diaspora. Pittsburgh could be the model for community overcoming distance.