I've seen this idea discussed randomly a few times in various threads, but I figured it deserved its own thread.
Personally, I believe his pitch selection, poise, repeatable delivery, command, and strikeout stuff would be best used in our starting 5 next year, but I can understand the flip side, with keeping him as the closer, since he doesn't fold to pressure.
What are your thoughts? Personally, I could see his ceiling in the Rotation as a high strikeout, low xFIP guy.