In that case where team member is defensive, the lead can take following steps:

1. Teaching him meaning of team work.

2. discussing minutely his actions while he was supposed to perform something and he didn't and something wrong happened.

3. Be very sharp and specific don't generalize his/her responsibility.

4. Sometimes it seems that Team member is defensive but actually he was going through a genuine problem.

5. The best aproach is to make a diplomatic balance like if he is defensive for something wrong done by him, them appraise something which he has done good in past or in present and very professionally make hime realise that he shouldn't be defensive and should improve for future.