One cannot properly preach Christ and Him crucified with out preaching exactly who Christ is [ biblically] and what His crucifixion means, who it was for, and what it accomplished !
For instance, one cannot preach Jesus died for our sins, without elucidating who Paul means by our sins.
1 cor 15:
3For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;
This would be limited to the sins of the church, the called, the chosen as he calls them in 1 cor 1:
2Unto the church of God which is at Corinth, to them that are sanctified in Christ Jesus, called to be saints, with all that in every place call upon the name of Jesus Christ our Lord, both their's and our's:
23But we preach Christ crucified, unto the Jews a stumblingblock, and unto the Greeks foolishness;
24But unto them which are called, both Jews and Greeks, Christ the power of God, and the wisdom of God.
26For ye see your calling, brethren, how that not many wise men after the flesh, not many mighty, not many noble, are called:
27But God hath chosen the foolish things of the world to confound the wise; and God hath chosen the weak things of the world to confound the things which are mighty;