Morning links: Locker room culture

Philadelphia Eagles linebacker Connor Barwin, writing for Sports Illustrated, really does a nice job of explaining the complexities of an NFL locker room environment in this article. It’s a must-read this morning.

In this ESPN Insider pieceInsider, draft analyst Mel Kiper Jr. updates his draft board. Oregon State receiver Brandin Cooks moves up the list after a strong performance at the combine.

Tom Krasovic of U-T San Diego talks with Chargers defensive lineman Kendall Reyes, who sees growth on his team’s young defense.

Daniel Jeremiah of NFL.com has the Chargers selecting TCU cornerback Jason Verrett in his latest mock draft.

Greg Bedard of Sports Illustrated ranks Donald Butler at No. 46 and Chad Rinehart at 39 on his top 50 free agents list. Bedard also writes that Miami Dolphins' soon-to-be free agent nose tackle Paul Soliai would be a good fit for the Chargers. At the right price, I agree.

Judy Battista of NFL.com reports that the league is considering adding an extra official for preseason games to focus on interior line play. The official would be used on an experimental basis, and would not be employed during the regular season.

Bill Barnwell of Grantland has an interesting read on pro sports taking the next step in using analytics.