basically he saw the seasons Ware and James Harrison had in the 3-4 OLB role and wants to do the same now. He definitely wouldn't want to be a 3-4 DE. Those guys don't get the big sack totals or the glory. They do the dirty work, but the OLBs are the ones who fill up the stat sheet.
he really is a perfect 4-3 DE. Not sure why a top 2 or 3 DE would want to change positions...