Here's an oldie-but-goodie New York Times piece by Dr. Pauline Chen on medical student grades. In reading the article, residency applicants should reflect on how important the content of their letters of recommendation is, especially in the setting of medical school grades that may be inflated or simply inaccurate. The 2020 NRMP Program Director Survey supports the importance of letters, as well, with statistics. Make sure your letters are very strong; remember that mediocre letters should not be a part of your residency package.