I'm not sure all of those happen but to me the biggest ones surround Fowler, Talib and Weddle.
Fowler should definitely benefit from being with them the full year.
To me the biggest ones are Talib and Weddle. With Talib last year (11 games, including the postseason) they gave up 17.8 PPG. Without him 30.8 PPG.
With Weddle (and Matthews) their biggest assets are their smarts and veteran leadership. I expect far fewer broken plays and big gains allowed because those two will help have people prepared and lined up in the right places. And Weddle will help Johnson be an even better safety than he already is.
