What to do about Matt Carpenter

It wasn't long ago that Matt Carpenter was an MVP candidate. In 2018, the Cardinals third baseman-turned-second baseman-turned third baseman-turned first baseman-turned third baseman went on an offensive tear that St. Louis baseball fans hadn't seen since Albert Pujols (or possibly Pete Kozma in 2012, I don't really remember). Despite beginning and, to a lesser…