Right at this moment, IMO the front 7 looks like:
RDE Okoronkwo
NT Robinson
DT Donald
Wil Mathews
MIKE Floyd
MO Young
SAM Ebukam
I don't think Mathews is near as good as Fowler as his stats are misleading. AD & Fowler set up his sacks. He was far less effective when contested. That front with the exception of AD isn't going to strike fear into any OC. But it's not a bad front with some legit speed at SAM, MO, and MIKE. That will give Staley a lot of options. With Young and Floyd, he will have ILBs with speed to cover and to play sideline to sideline. I don't see it as an elite front but an overall good unit. What will make them better is if the secondary plays as will be expected of both Ramsey and Long. I would expect far fewer zone coverages and more man.