It doesn't really matter what Fields playing style is (or was) in college. NFL is a different speed and if you don't protect him, his scrambling and 40 time will mean nothing. Plus, I for one don't want to constantly rely on his scrambling. I mean I love watching Lamar do it and it works but its too dangerous to always rely on it when your OLine is forcing you to scramble cuz they can't block anything.
At this point, with our mediocre line, if any of them goes down, we're really screwed..... and so is Fields.