After a 13-year run at Auburn that was equal parts success and scandal, Tigers athletic director Jay Jacobs made use of the Friday news dump to announce that he will retire either next June or whenever Auburn hires his replacement. In a note titled, “A Word From Jay Jacobs,” the former Auburn offensive lineman wrote that “the last several months have been a particularly difficult time,” adding that he “prayerfully decided” that the time for him to step down has come. Jacobs’s full letter can be read here. An excerpt: The last several months have been a particularly difficult time. Across several sports, a series of controversies have arisen. They have begun to take their toll and have raised questions about why Auburn must endure such problems. As I have always done, I ha…