Krist wasnt clumsy, just simple.
Kurt was the only really sloppy musician in the band (and that was usualy only when he did a solo or a more complex guitar part) after Chad left, Dave and Krist played very simple, not impressive but certainly not sloppy in my opinion, they were a good rhtyhm section, they held the song together when Cobain went out of controll, it was a brillant contrast between discipline and controll and pure noise and mayhem, its one of the primary reasons i f*cking love Nirvana.
Kurt was the only really sloppy musician in the band (and that was usualy only when he did a solo or a more complex guitar part) after Chad left, Dave and Krist played very simple, not impressive but certainly not sloppy in my opinion, they were a good rhtyhm section, they held the song together when Cobain went out of controll, it was a brillant contrast between discipline and controll and pure noise and mayhem, its one of the primary reasons i f*cking love Nirvana.