JBJ is the embodiment of this opening passage to Dickens' A Tale of Two Cities--
“It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of light, it was the season of darkness, it was the spring of hope, it was the winter of despair.”
In short, JBJ drives any sensible Sox fan nuts because of his now legendary ups and downs. My suspicion is that he will never repeat 2016, by far his best (OPS .835) season, but will continue to come close to his career OPS of .723. Right now he's at .717, but that was built on horrendously bad April and May, a stunningly good June, and a subpar July.
Nevertheless, I'm glad he wasn't traded and won't mind if he returns next year or if he is traded for someone of value. He helps the Sox claim to have one of the better defensive outfields in MLB and especially allows Mookie to excel in RF.