It is a known fact in Hollywood’s history that after winning the Oscar, many directors go on to make weaker movies, because they get carte blanche to do any project they want.
This is one of the short-run effects of winning the Oscar, explaining, for example, why Fred Zinnemann got to direct “Oklahoma!” right after sweeping the 1953 Oscars with “From Here to Eternity.”
And why Richard Attenborough fell flat on his face with the musical version of “A Chorus Line,” which followed the Oscar-winning “Gandhi.”
Neither Zinnemann nor Attenborough knew much about the musical movie genre.