"Jahvid Best has been back at the Lions practice facility the last couple days. He even put on his jersey for a bit Thursday.

But as good as it is to see him smiling and walking around, it doesn't appear he's any closer to putting on the pads and returning to action.

"He is improving," coach Jim Schwartz said. "He's back in the building and we are seeing him on a limited basis. Obviously that's a good sign. But there is still no clearance for physical activity."

Best, who has been looked at by several specialists the past two weeks, will miss his fourth consecutive game with post-concussion symptoms. He was approached by reporters but, per team policy, declined to talk.

"It's just good to see him back out here," offensive coordinator Scott Linehan said.

The running game, in Best's absence, has been slightly more productive than it was before the injury. The Lions, with Maurice Morris starting, are averaging 99 yards (4.4 per carry).

Overall, the Lions are averaging 93.6 yards (4.0 per carry)."