Vakif is not that unbeatable, if you check stats and watched the match, their serve receive looked terrible. Any team who can serve well and has a good block-defense against Zhu can lock them badly, since Naz sets only to Zhu when the receiving is bad.
Im sure FB will be a much better team once the injuries are over but I don't think Natalia will be as efficient as last year. Having KYK in your opposite is not only a relief in serve receive but also she is such a threat to opponents in attacking that they have to keep an eye her, while Natalia could score freely. Now Natalia is the one that opponents will keep an eye on and we might watch Rahimova taking Natalia's role from last year.
It was Kelsey's first match and she didnt do well with the Mikasa ball so far in receiving. Lets see how good she will receive against Turkish league serves