Make Coaching About Your Team Member And Not About You
People are more likely to change their approach or behaviours if they feel it is their own choice and it is not being imposed upon them. Coaching a team member effectively is about enabling them to think and act in new ways wards a way of thinking which does not feel enforced.
Forcing anybody to do something that is not natural to them or is not the way that they have always done something is likely to fail. However, using coaching you can gently reintroduce them into a new way of thinking.