It's a Pittsburgh problem, hanging on to aging starts past their prime to appease fans who cling to the 'good lol days', well except for the baseball team.
As the joke goes.... It takes 10 Steeler/Pens fans to change a lightbulb. One to do it and the other nine to talk about how great the light bulb used to be.
Because the fans are nostalgic for the days gone by of their superstars, it leaves little financial motivation for ownership to make major changes. A splash signing here and there, or like JR with trades and moves weekly, that keeps the fans coming and gives them the idea the team is really trying to get back to a championship. In reality, that ship has sailed and these now old superstar players have zero chance anymore of getting the team a championship. But ssshhhh, don't tell the fans that or trade/cut those guys, they'll get mad.
-Mike