What should Tatar or jurco be traded for? Stamkos? Trading Tatar for a guy like green makes sense and is a fair trade, like it or not.
A top 4 D isn't peanuts. Fans have a highly inflated value of the Wings' prospects and young players. Tatar is a good young scoring winger, more like Kozlov than Datsyuk. Mantha hasn't played a game of pro hockey but people are acting like he's Brendan Shanahan part 2.
A top four defenseman under contract? Sure. I'd trade almost any of our young guns in a package for Yandle. He's that good AND under contract. But losing a guy as good as Jurco or Tatar for a rental is dumb. How much developmental time and resources go into each prospect? A lot. And the absolute best you can hope for is that they turn into top six forwards or top four defenseman. In Tatar, Nyquist, and Jurco, your best case scenario has come true...and it's DEFINITELY not good value to throw that away for a guy who (if recent history is any indication) isn't going to help you compete for a Cup and probably isn't going to re-sign with your team at the end of the year.