Do you understand the purpose of the Epistles? They were to promote uniformity in the Church. If each locality was stand-alone, we would have no Epistles... and a very abbreviated New Testament.
Yes and no.
Mostly no, I think.
The Epistles were . . . exhortive . . . in terms of faith and practice . . . not, per se in terms of organized hierarchical leadership issues.
1) the word church means called out ones, not a building or earthly organization..
2) Most of the epistles were written by Paul.. not to organize a cabal of clergy but to aid in empowering the Holy Spirits ministry.. As he well said multiple times.. Paul just shared what the Holy Spirit taught him.. on the road Damascus and after.. And he shared with others they needed the same "help" as he.. Paul lead others to seek the Holy Spirit(paraclete).. If ANYONE knew that mans teaching (tradition) could be corrupted it was Paul(Jew of the 1st order).. AND the Holy Spirit was needed to descern spiritual and other error..
3) Some of Paul's teaching was to debunk the teaching of the Judaizers who were Jews seeking to encourge development of Jewish tradition.. both new and old ones.. The poor gentiles sometimes had difficulty separating the good Jews from the Bad Jews.. Posing as chrisitans for various reasons.. The Galatians were a perfect test case for that... although the same thing happened in other localities.. i.e. Corinth.. "Are you from Paul, or from Apollos?".. Paul effective dismissed the idea of Popedom there..