I'll say the same thing I said before Fields' rookie season. I have no set expectations, per se, other than that the rookie QB shouldn't look lost, and will hopefully looks like he belongs in the NFL by the end of the year. We will be able to look at the performances and tell whether he looks completely overmatched or not.
Going into Fields' second year, I said I wanted to start seeing semi-regular progress, better processing, increased readability of the defense, quicker identification of the open receiver. Going into his third year, I said I wanted to see all of that, plus more consistency and the ability to string together multiple games that look like they were run by a good NFL quarterback.
I'll hold Williams to the same standard. By the end of his rookie year, I want it to look like he belongs, that he's not overmatched by the pro game. In his second year, we should see incremental-to-gradual improvements on the things quarterbacks need to do to survive in the NFL. Beyond that, we'll see where it goes.
That said, I think it's fair to say, well, if you're moving on from Justin Fields, you need more. You need higher expectations out of the gate. You need him to be better than Fields, and fairly quickly. Long term, I disagree. But short term---Yeah, I think that's fair. I think it's also a pretty low bar that Williams will probably surpass. We'll see.