Some high-profile rookies hit the ground running in their first training camp. Many more do not.
Eric Ebron is part of that second group. The 10th overall pick has struggled to get up to speed this summer while attempting to learn the intricacies of Joe Lombardi's new offense in Detroit.
NFL Media's Daniel Jeremiah could see the mental game grinding on Ebron in a recent visit to Lions camp, counting three "concentration drops" in one practice session for the young tight end.
"He has a lot of talent and I think eventually they'll pare things down for him," Jeremiah wrote. "He'll think less and you'll see his performance improve."
We won't be surprised. If the effort is there, the talent will win out for guys like Ebron. When he says he's already hit the rookie wall, we believe him.
Here's what else you need to know from Tuesday's training camps:
2. Santonio Holmes is back on the grid. The former New York Jets wide receiver worked out with the Chicago Bears. The Cleveland Browns are also interested, according to NFL Media Insider Ian Rapoport. We're not sure how much Holmes has left -- or if he's even worth the aggravation -- but there are some weak depth charts out there.
3. The Bears are not happy with tight end Martellus Bennett, who was fined and suspended from training camp for his unnecessary body slam of teammate Kyle Fuller on Monday. You wonder how much the whispers of Bennett's lazy practice habits played a role here.
6. Interesting reporting from Ben Volin of The Boston Globe, who noted that Darrelle Revis has lined up exclusively on the left side in training camp. Could the Patriots be planning a Richard Sherman-type role for Revis in 2014?
8. Teddy Bridgewater is one rookie who has hit the ground running in his first camp. Matt Cassel sits atop Minnesota's depth chart, but Bridgewater has a good chance of winning this job. Offensive coordinator Norv Turner said Bridgewater is playing at an "awfully high level."