Yeah, I understand that. I'm just saying, if Fields is bad next year, the response won't be "Damn, we could have gotten a 1st for him in March". The response will be more about Fields being bad in general. And the options are a 5'10" QB, a big QB with bad stats and a QB from the same program as Fields. It makes even more sense that way to wait for next year's QB class, just in case.
And draft picks are valuable, but not as valuable as having an actual QB. Which is why teams will trade multiple draft picks for the #1 pick this year. And why the Bears having multiple early draft picks next year is the goal.