My biggest problem with Fields so far is that the guy can't stay on the field consistently. That is the #1 reason I would look to move on from him. If he can manage to stay on the field, I think he could develop into a poor man's Lamar Jackson. And Lamar is about to be a two-time MVP and has one of the best regular seasons winning percentages of all time for a QB. A poor man's LJ could still be a heck of a valuable football player.
At the very least I could see Fields becoming a Jalen Hurts type QB. But the guy can't be missing as many games as he does due to injury.
Stroud, I don't think anyone saw this coming. Folks mocked him endlessly in that pre-season game where he through a couple of really bad picks.