>>12527683Nobody knows the full picture yet, it happened off-screen between Season 1 and Season 2 since at least 5 years have passed.
His coach somehow died for inexplained reasons in between season 1 and 2, and that's a huge part of it since coach's "ghost" keeps on haunting him when he's going through drug withdrawals and Joe blames himself for it, but there's still other reason implied for Joe's downward spiral and Coach's death is just part of it.
