I think it was a combo of many things. I know he showed up 15 lbs heavier(the good kind) last year. Honestly I think RR and his DB coaches were better than Rhules Crew, just one of their strength. Even tho hes not in the NFL, I thought Steve Wilks was top 5 DB coach. Djack just figuring out how to be NFL pro rather than the opposite. I know some think Djack doesnt tackle well, I feel at least hes not scared of the act in tacking a bigger player. Since day one, he was one of the fastest players in the whole NFL too. I know he keeps in touch with LSU DBs(they call themselves DB U), that has to help lots as well. Heard him talking with the honey badger and they emphasize having a dawg mentally.