Pulled these graphs from the article linked below. Good news for Cardinals fans (and for the handful of other teams on the top end of the graphs).
Add the two graphs together to get this:
Link to the article: http://www.vivaelbirdos.com/st-louis-cardinals-sabermetrics-analysis/2015/9/1/9237583/cardinals-have-the-most-productive-young-players-in-mlb?_ga=1.3050672.1480270825.1441225034
Not a lot of hope for even next year or the year beyond for the teams at the bottom end of the graph.