The priest has the authority to celebrate the EUCHARIST and absolve sins through the power that it was invested in him by CHRIST, but never ever to take the Place of Christ( Dogmaticly), and likewise for the priesthood, they are to SERVE the LORD.
They serve the Lord by doing things that Christ established the priesthood to do,things that he did,until he comes again. So practically speaking,they do take his place.
At times, yes they did, and that is when he was Orthodox( such as the case with Pope Leo I),
Pope Leo claimed to have universal jurisdiction and infallibility,and authority over an ecumenical council;and yet he is a saint in the Orthodox Church.
“Although bishops have a common dignity, they are not all of the same rank. Even among the most blessed Apostles, though they were alike in honor, there was a certain distinction of power. All were equal in being chosen, but it was given to one to be preeminent over the others . . . the care of the universal Church would converge in the one See of Peter, and nothing should ever be at odds with this head.”
(Letter to Bishop Anastasius of Thessalonica, c.446 A.D., 14:11; in Jurgens, FEF, vol. 3, p. 270)
“From the whole world only one, Peter, is chosen to preside over the calling of all nations, and over all the other Apostles, and over the Fathers of the Church . . . Peter . . . rules them all, of whom, too, it is Christ who is their chief ruler. Divine condescension, dearly beloved, has granted to this man in a wonderful and marvelous manner the aggregate of its power; and if there was something that it wanted to be his in common with other leaders, it never gave whatever it did not deny to others except through him.” (Sermons, 4:2; in Jurgens, FEF, vol. 3, p. 275)
TO THEODORET, BISHOP OF CYRUS, ON PERSEVERANCE IN THE FAITH.
“Wherefore we make our boast in the LORD, singing with the prophet: “our help is in the name of the LORD, who hath made heaven and earth:” who has suffered us to sustain no harm in the person of our brethren, but has corroborated by the irrevocable assent of the whole brotherhood what He had already laid down through our ministry: to show that, what had been first formulated by the foremost See of Christendom, and then received by the judgment of the whole Christian world, had truly proceeded from Himself: that in this, too, the members may be at one with the Head.”
To the Council of Chalcedon:
“Yet in these brethren, that is Paschasinus and Lucentius, bishops, Boniface and Basil, presbyters, who have been deputed by the Apostolic See, let your brotherhood reckon that I am presidings at the Synod; for my presence is not withdrawn from you, who am now represented by my vicars, and have this long time been really with you in the proclaiming of the catholic Faith: so that you who cannot help knowing what we believe in accordance with ancient tradition, cannot doubt what we desire.”
and at times they also knew that he was heretic and they didnt hasitate to call him so and anathemitize him as such ( such as the case with Pope Honorius).
And yet he was not condemned for teaching a heretical doctrine.
So Honorius was proved to be infallible,according to the standard of Vatican 1.