Oh no, had nothing to do with a way we play. Now, i wouldnt say that he is close to being world class at the moment. Think with right mentality he could become a good one. Whole thing about Savic is a weird one, his story around Serbian national team isnt revealed completely. Ex national coach Muslin didnt call him, he explained how Savic wasnt a good fit in his system, it was never clear was it off field fit or on. He got sacked after qualification stage due latest results but mostly because of Savic, so guess we will never know.
Think, for Matic-Pogba-Savic to work, we either need Pogba to adapt a bit or to change Matic. Also, think he would show less resistance to JM instructions, not saying Pogba refused to do things what JM told him to, just Pogba might look like a bit more free spirit type then Savic.