It's interesting to see some differences in philosophy emerge under Ron Rivera vs. John Fox
1. Rivera has high standards that supercede loyalties. If he doesn't have the right DT's or DE's, he cuts and looks elsewhere. He doesn't look to keep marginal players year after year (think Dwayne Jarrett). Brown's gone, Irvin's gone, Sutton's gone.
2. Wants size vs. undersized players. Goodbye Brown, hello Norwood, etc. WR are bigger as well.
3. Going for more toughness to. Guys like Brockel and Harsock.
Overall, I like the changes and his no nonsense approach.