I really feel bad for Miller. He was dominant at Rochester, but just fell apart once he came back to the Majors. Hopefully it's just psychological and he can work through it.
Lobestein is a 31 year old journeyman, but he has a 1.69 ERA in 16 games, 21.1 IP, 25Ks, 8BBs this year. He last pitched in the majors in 2016.