In September, Corey Dickerson has started all but three games. One of those games he sat was due to a doubleheader. He has essentially become a full-time starter. He is not alone, of course, but he has been bad in September. He has a batting line of .262/.274/.344, good for a 75 wRC+. He has not been unlucky as he has a generally terrible plate approach, as evidenced by his 1.6 BB% and .314 BABIP in that span.
Okay well, that’s September, where the Cardinals’ offense went to die. Nobody’s numbers are going to look good. Actually, if you can believe it, five Cardinals have a 122 wRC+ or better in September, all with at least 47 PAs.