I think they definitely need a bullpen arm, if not 2. It's not even so much about the trust, but these guys are getting overworked.
And the backend of this bullpen is just not good at all. Getting Koenig back is good, but whatever is happening with Patrick isn't good. And a guy they probably counted on improving-Yoho, has obviously not happened. They need more arms that can pitch in those games where they are only down a run or 2 and can keep it close to give them a chance.