I personally think that's a sacrifice Wade is willing to make. If having elite pass rush/DL and secondary means you get gashed by 25-30 yard runs here and there I think he's more than fine with that trade off. I would expect their run defense to be better but doubt they'll be in the top 10 or maybe even top 15.
The list of LBs and experience is valid. Though in Hager's case 99% of his experience is on ST. I don't think he's anything more than that. And he may even be fighting Scales for his roster spot.
Otherwise Barron, Wilson, Littleton, Kiser, Ebukam, Longacre and Okoronkwo are really the 7 guys I think that will be their main ILB/OLB rotation.