If he is hurt then that is a different thing entirely.  8 snaps is not many.    But if not, they have done him no favors moving him to LB. Different angles, different techniques, different reads.  He knows how to play safety, excelled at it v Utah, ASU and Arizona. At LB he is not the same difference maker. It shows.

Honestly, it reminds me of what Detriot did with KVN.  Then he went to NE and all of a sudden he looks great again. Coaches need to use him correctly and just aren't.   The D is not as good with him at LB and someone else at safety.  

Sometimes I scratch my head at the tinkering.