Draft or Trade Down

Curious if there is any draft prospects that you can't pass up and trade down for future draft picks
I know this sounds bad, but it depends on who is available and what would be the offer for our pick.

I don't see a team going for the riches this year with a mega offer for the 9th pick, so I think it's go BPA, hoping to find a guy that will be an anchor for what we are trying to build.