The DL has been trending downhill for years. It's why we got rid of Nielsen in the first place. In fact, Granderson didn't develop until we got rid of Nielsen.
I'm pretty sure Nielsen was the one who developed Granderson and we didn't really get rid of him as much as he took the DC job in Atlanta. He's not the DC in Jacksonville. Kris Richard was the guy we let go.
My recollection is that Granderson got here in 2017 but wasn't much of a player until Neilsen started to develop him in starting in 2019.