To be fair, Shildt might not have another option who would work out better. I would try something different. Shildt won’t.
Martinez lacks the mental toughness at this point to handle the high stress moments and make the course corrections when he hits the bumps. I couldn’t help but notice the contrast today when Molina met Wainwright on the mound, in the 8th I believe. It looked like two grown men confidently deciding how to handle a crucial juncture of the game. When Yadi meets Martinez on the mound, it usually looks like daddy telling son to calm down and refocus. His body language is not good in those moments. It happens often and is not what you need from a closer.