I don't think replacing Mayer with Correa is a great idea. The part of the reason you keep Mayer around is due to the cost savings from his first 6 years in MLB. I'm not sure Downs, Dalbec or Duran have a ton of trade value right now. Yorke is still a big question mark, but I think you hold onto him because of his ceiling. The best trade chip they have is Verdugo. He's young and cost controlled. He's already a proven MLB commodity.