I have already shared some training material with him like IATF TS auditor guide, Automotive process approach ppt etc. I will also share some more training material in few days. In the mean- time, let him go through the training material as well as let him go along with other TS auditors for some time, at-least 3 or 4 to gain confidence.
Once confidence is gained, I will witness him once again; honestly I want to witness him direct to TL status not for TM once again. But, all this depends on his involvement in observation audits and getting involved in reading training materials and preparation of audit reports etc.