Who Should Be Traded, Malkin or Staal...Really?

The Pittsburgh Penguins have built a lot of success using the three center model over the last six seasons.  Since Sidney Crosby, Evgeni Malkin, and Jordan Staal made their way to Pittsburgh, the Penguins have made six straight playoff appearances including two conference titles and a Stanley Cup.However, not all is well in the Steel City. Pittsburgh has failed to get out of the first round in the last two years, including the last playoff run when they had a completely healthy roster.  Now, GM Ray Shero believes changes may be coming to the Penguins who surely need to beef up their defense if they want to have a chance in 2013. Since the Penguins won't be losing any significant cap space from free agency, it may be time to look at a trade.  Jordan Staal, a free agent after next season, is 23 years old and rumored to be looking for a bigger role.  While Staal has shown feelings of admiration to Pittsburgh, it is foolish to believe he wouldn't test the free agent market.  Wit...