Obviously it is! For example: Jesus told his disciples to obey the scribes and Pharisees, whereas Paul said we are not under the Law.
It is hard for traditional denominations to acknowledge the differences between Jesus and Paul, because they have been teaching for ages that both the Lord and the apostle always preached the exact same thing. They would have to dump millions of books on the subject.
We have to remember, Jesus lived under the old covenant, so if the scribes and Pharisees preached from that covenant what they said should be followed. However, Jesus also said: Do not do what they do, for they do not practice what they preach.
But Jesus, looking forward to the new covenant said:
Unless I go away, the Advocate will not come to you; but if I go, I will send him to you.
8 When he comes, he will prove the world to be in the wrong about sin and righteousness and judgment:
9 about sin, because people do not believe in me; 10 about righteousness, because I am going to the Father, where you can see me no longer;
11 and about judgment, because the prince of this world now stands condemned. John 16:8-11
Jesus did not say, about sin if you transgress the law, but rather, about sin because people do not believe in him. And they would have righteousness as he was going to the Father. So believers righteousness would not be the old way of obeying the law, but believing/faith in Christ. When Paul wrote of not being under the law, he meant having no righteousness of obeying the law, the believers righteousness was faith/believing in Christ. So Paul was expounding on what Jesus had said regarding the work of the Holy Spirit under the new covenant.