metis
aged ecumenical anthropologist
It is true that the Way existed before Paul, but Paul definitely was very much a part of it or why else would the apostles given Paul even the time of day.The Sect of the Nazarenes was called the Way or the New Way long before Paul founded the Christian Church if you read Acts 9:1,2. Paul lived the first part of his life as a Jew and died as a Christian and, that he was a Pharisee, he was lying. The Sect of the Pharisees was names as the "Separated Ones."
It means that they would never accept a Hellenist Jew as a member of the Sect.
Secondly, there does appear to have been a Hellenization process that affected the Way, especially with it's greater emphasis on inclusion that preceded Paul's acceptance into the community. On top of that, Jesus' views on Heaven and Hell reflect a Greek influence because no such pattern existed in the Tanakh nor the Oral Law. And this should not be a surprise since the northern coastal region of eretz Israel was very strongly influenced by the Greeks and Romans.
Paul clearly was a Pharisee, and so was the general direction of the Way, especially when one studies their beliefs in certain areas. Paul's use of dichotomy (black/white, light/darkness, etc.) is thoroughly Greek.
However, with that being said, it's not possible today to know whether the leadership of the Way identified themselves as Pharisees.