In what conditions might you (1) increase or (2) decrease the amount of supervision specified to a team member?

Where a quality problem has been distinguished in an individual’s work, or where they appear inexperienced or uncertain of themselves, this may be advisable for them to be supervised more closely.  Nonetheless, this can prove demoralising to experienced and able people and the correct approach here may be to provide them a lot of latitude to exercise their professional judgement into how they go regarding their work.