Regarding Elif Sahin, yes, she definitely should have been here but her setting to MBs are horrible, too. It wouldn’t have made any difference. If you watch her matches on youtube, you’ll see what I am talking about.
Yasemin was OK in attacking before Karayollari but now she is horrible in attacking. She has to work on it a lot in the next season. Merve has a good approach and reading at block and I am sure she will learn a lot but I doubt her attacking will improve because she will be playing with Elif in Karayollari.