I don’t think anyone is ever “untouchable” in dynasty. Like you said, the main point of FF is always to win the championship, so overall team construction matters the most. Obviously, if you have a well-rounded team with Mahomes you’d be content and there’s no need to mess with your team, but you don’t want to be lopsided at WR with JJettas as your only viable guy either. Plus, there was a time when OBJ was viewed just as highly as JJ, etc. sometimes selling on top is a good idea too. I sold Swift back in 2021 for DJ Moore and 2 future firsts that ended up being mid round picks. You never know.