The recent swap of spare parts between the Panthers and Oakland (fourth running back Mike Goodson for backup tackle/guard Bruce Campbell) was just the latest in the tweaks that have Ron Rivera putting his own stamp on the team.
He's been weeding out guys who didn't fit the system since last year (such as cutting fourth-round fullback Tony Fiammetta after one season), but the project is beginning to gain steam.
Goodson had been a productive part-timer under John Fox, showing explosive ability late in 2010 when injuries made him a starter. But he fumbled too much in his first audition for Rivera, and was banished to the doghouse long before a hamstring injury landed him on injured reserve.
Another instance was shown earlier this offseason, when trusty guard-tackle Geoff Schwartz wasn't given a restricted tender because they didn't want to invest $1.26 million in a backup, and he ultimately signed with Minnesota. That move had philosophical angles as well, as it was said line coach John Matsko didn't care for Schwartz's more powerful-than-agile style.
That should put several other fringe players who were favorites of Fox (such as defensive end/outside linebacker Eric Norwood and safety Jordan Pugh) on notice, as additions in Charlotte this offseason could make them available to their old coach again.