I would remove Burgess from the underachieving list. He simply is not very good. He was jumped by a later round pick from his own draft year, and to date has not done anything on the field that is noteworthy. This season is an extension of that and the only reason he's on the depth chart is because they know his draft value will lead to him being claimed. That stuff matters, teams remember their draft grades, so holding on to him and using him as a depth option has been the approach.
Fuller I agree is playing good ball now. He was struggling early on, but I think much of the problem with the safeties was Morris-related. It was probably the way he was calling things and setting keys in his gameplan. But things have been a lot better of late. So for me Fuller is not a concern.
The other safety spot I'm gonna wait and see btw. Still think Rapp is miscast there but that spot has been better too so we'll see.
Williams is the guy who played at a top level last season but looks like ass this year. So internally I am sure the Rams are looking at how/why that has occurred. I refuse to even guess on this since I refuse to watch the NFL's shitty fucking All-22 this year. That I paid for. But anyway. Something's definitely up with him and it may be him who knows. I just hope there's a big effort among that staff to get him playing how he can play.
Re: Morris I think he's picking up this defense now. It can't be easy to swoop in here with a team who was the best in the league last season in a scheme you don't know and then have to design the gameplans and teach it to the players. So if we're lucky he keeps getting better or finds that balance that works with what he's comfortable calling.
