John doesn't feel very much responsibility for the outcomes he produces at work. According to the Job Characteristics Model this is most likely to be the result of:

$$ not experiencing very much skill variety in his work

not experiencing very much significance in the tasks he performs

not receiving very much feedback on how he is performing his work

not having a very good understanding of how his job fits into the organization as a whole $($i$.$e$.,$ task identity$)$

$$ not experiencing very much autonomy in his work