How much have we improved player personnel?

[30gut]

Football Outsiders rated last years D:

FOOTBALL OUTSIDERS: Innovative Statistics, Intelligent Analysis | 2015 DEFENSE EFFICIENCY RATINGS

20th overall
22nd run defense
19th pass defense

2015 NFL Team Passing Stats - National Football League - ESPN
Passer rating against: 96.1 --22nd

Yards per rush attempt: 4.8 --31st

Run-
I think the improvement of the run defense in large depends on who wins the open SS and ILB spots. I don't think we lost or gained much run D through the DL and I think the SS spot will be improved through subtraction of Dash and the addition of Bruton/Duke/Su'a. But at ILB who knows? Riley was part of the problem maybe some due to injury and Foster once he entered the line-up was the most stout against the run. A healthy Riley w/ Foster would be an improvement over last year. But, if Daniels gets into either ILB spot that's a huge bump for the run D imo.

Pass-
I would be disappointed if we don't at least hold opposing QBs 90 or below (which is about 15th); I think we honestly have the potential to be top 10 in passer rating against, which for me is barometer of good quick pass defense.