Sim MO usually played as backup libero for Hillstate.. but Altos should train her again as MB to give more options in MB position, so Kim Hee Jin can concentrate to become better OP for NT sake....
Sim Mi-Og was classified as a MB on the team roster whilst she was at Hyundai. Hyundai would often uses Go Yoo-Min and Lee Yeong-Ju as pinch servers so you would see Mi-Og as the backup libero most of the time. I doubt Sim Mi-Og will get to see much court time. There are about five MBs already there at IBK, but one or two might get released. I would have like to seen Hyundai keep her and raise her as OH instead.
Speaking of OH, I remember seeing an article last month saying that Hyundai head coach Lee Do-Hee is planning to gradually switch Jeong Ji-Yun from MB to OH over the next few years. So expect to see Ji-Yun playing on the wings more often. Source: 1