Technically, Chargois wouldn't use an option while he is on the 60-day DL. Perhaps the theory would be, keep him for now on the 60-day DL and give him the first 2 months of the season to show he is healthy again -- although rehab is limited to 30 days, so you'd have to do April in extended spring training, then the month of May in AAA for rehab. Basically postponing this decision to June 1st or so, not unlike how some teams approach Rule 5 picks. If he couldn't stay healthy through June 1, you could leave him on the DL longer and preserve his option year for 2019 -- but of course, if he can't stay healthy again, you probably don't want him for 2019 either, option or not! But if he could stay healthy, you could decide on June 1st to activate him to MLB, or option him to AAA, and then decide to drop, say, Enns, or Kinley if he is still around, etc. instead, if you still need the 40-man spot. Not that I endorse it, but I believe that is the alternative plan being suggested here.