This is kinda misleading and oversimplified. You have to consider the other trades that it took to get assets like Leddy and others which loops in other trades like AA and Marc Staal,
I mapped out the entire tree once in a dedicated thread (that has since been deleted by Matt, as he purged every thread my past profile ever created) and it ended up looking pretty 50/50 Wings v trade partners. I believe Kip even pointed it out. But I guess its still a win at the end of the day because we gained a lot of youth overall with all these connected trades.
One thing Yzerman is grand at (usually) is gaining something that GM's want or undervalued, and then flipping it for something HE wants.