I am on board with drafting Simmons in a trade down situation. Big picture it's hard to start a rebuild with a question mark as your first selection. I get that your not planning to compete in 2019 but that doesn't mean he's just plug and play in 2020. It doesn't mean he's not. Personally I think it's irrelevant as the team is going to maximize the number of draft picks they can get for pick 13 (and likely more subsequent trade downs).
There are better landing spots for him starting with NYG at 17.
Baltimore, Oakland, Philly, Indy, Oakland again.....they can swing for the fences given their current constructions.
Keep an eye on the Eagles, with that extra 2nd rounder and very few needs on offense outside of depth, Howie Roseman likes to win the draft but the Sidney Jones selection hasn't panned out for them like they were hoping.
Giants and Raiders with multiple picks and multiple needs coupled with tempered expectations for 2019 mean they can gamble.