Other conductors, for example Jean Martinon, beat a very comfortable tempo, between the extremes of Pierre Dervaux and Paul Paray. Jean Martinon really knew how to impose a rhythmic unit on everybody, which was especially convenient for the trombonist because he is the last one to make his appearance (after the Eb clarinet, the bassoon and the saxophone). A central conception of the work is necessary if one intends to attain a synthesis of sound balance and a musical uniformity. If the trombone solo wasn't at the end of the piece, then the problem would probably be different.
The responsibility of the solo trombone is very large in this piece. If it is played successfully then the whole orchestra shares in it — but the opposite is also true.