I can see where you're coming from. After the 270 yard rushing game given up, 226 yard rushing game, and multiple 195/200 yard rushing games given up, I re-watched the opposing team highlights. You would see Bentley repeatedly taking bad ankles or getting juked repeatedly. Not just him but Godchaux getting his a-s kicked.
For me I Keep HT, kick Bentley to the curb.
Need to upgrade at CB, ILB, NT. The whole defense needs a revamp. Legit massive nose tackle, new young ILB to learn next to Hightower for a year (not Bentley), and a CB.