They didn't have the faith of Christ and according to Galatians 3, it was not even available to them.
Galatians 3
22 But the scripture hath concluded all under sin, that the promise by faith of Jesus Christ might be given to them that believe.
23 But before faith came, we were kept under the law, shut up unto the faith which should afterwards be revealed.
24 Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith.
25 But after that faith is come, we are no longer under a schoolmaster.
All those in Hebrews 11 had faith, their own faith to live by. They did not have the faith of Jesus Christ because it was not available until after Jesus' resurrection.