There's been a history around here of players looking good rookie seasons like those 2 and Randall and Rollins and fill in the blank. Some of that failure definitely has to be on the coaches when it happens to as many players as it has around here. I mean, obviously you can't teach instincts or hitting/tackling ability in a player, but positioning and coverage technique you can.
I fault a lot of that on Joe Whitt, he's done mostly a horrendous job with communication and fundamentals. That's not letting Capers off the hook either; he had his own problems making adjustments over the years. But I really think if he fails to mesh his system into Pettine's, the final nail will be driven in his coffin this season.