Let me say first, I really like Hue "Action" Jackson (as a man). "But", after watching the Arizona and SF games again with a careful eye, a suspicion has come into my mind that Hue lacks talent for evaluating players.
The consistently poor play of Khalif Barnes, who again started and took the majority of 1st Half snaps is mind boggling. Most of us know how putrid Khalif Barnes is as a football player. He gets blown up, quits during play, rarely finishes his blocks and causes untold mischief and general futility everywhere, if you have any doubts whatsoever, watch the four plays on SFs goal (2nd quarter) that brought us no points.
Unfortunately, when our D comes in so does Barnes' counter-part on the Defense - Quentin Groves. This "LB" is so bad that I'm losing faith in Hue's competence to evaluate player talent - on both sides of the ball. It's not exaggeration that Groves' play is damning evidence against Hue and the coaches as it is also apparent that Quentin provides more pain to the fan than he ever has against the opponent.
I would give video of individual plays if it were possible. Please just go watch the game again on NFL.com rewind, e.g. with 6:40 seconds remaining in the 2nd Half is representative of Groves standard of play and what our coaches are prepared to offer us this season.
I could cite other players who are nearly as terrible as Groves and Barnes - such as Jerome Boyd and Walter McFadden, but those players do not appear as starters on the depth chart as do Barnes and Groves.
Finally, there is only so much any coach can do to improve player performance; indeed, Lombardi himself could not teach heart, proper angles of pursuit, strength, intelligence - these, a player has or does not ... and Lombardi, and most football minds, would recognize when a player is hopeless.