Several? He's going to be 37 at the start of next season. He'll be lucky if he's in the majors for another two years at his age, even if we disregard how awful he's been, which would be silly. The players you listed were all younger than Lohse at the time of their second chances and all are position players. Lohse has mediocre stuff to begin with. If he loses a little bit of that or loses a little bit of control/command, he's going to get knocked around. That's exactly what's happened.