I'm far more upset with Gorton for choosing '17 to move a vet for a top-10 pick and for the overall assets he got from Phoenix than I am with the selection. Even if I still am not thrilled with the selection (Suzuki). Draft board break didn't help either, because why would it.
Just half in response to this and mostly wanting to sort this out of my head and onto some kind of record:
From all the anecdotal reports I've heard in the past year or two (going back to before the 2016 draft) I think the timeline for the Stepan trade was kind of something like this:
Prior to the 2016 draft: Coyotes called about Stepan*, Gorton wanted (at least) their first round pick (#7OA)**, Chayka decides to wait to see how the draft shakes out before pulling the trigger
Draft day comes around Keller is still on the board and the Coyotes keep their pick and draft Keller***
Year goes by, Chayka comes back around asking about Stepan, weaker draft agrees to giving up the 7th OA pick
Rangers reportedly high on Patrick****, Pettersson, Glass, Andersson, Suzuki, and I'm forgetting the 5th, but the first 4 are in order of their board*****
Patrick, Pettersson, and Glass all taken before #7 thanks to Middlestadt and Vilardi dropping, Rangers go with their top guy left on the board.
* Interview with Chayka after the trade said he was trying to get Stepan for over a year and almost had a deal worked out at the 2016 draft
** Maloney mentioned during a game against the Coyotes (?) this year that the Rangers tried really hard to trade into the first round in 2016 to draft Keller
*** Chayka on Craig Custance's podcast was speaking about how hard it is to get elite top-10 in scoring level players when you're not picking 1/2 overall on draft day; when their pick came around and Keller was still on the board he felt Keller was that type of player and kept the pick
**** Edge mentioned a few times before or after the draft that the Rangers were really high on Patrick and if he fell to #3 they'd try whatever they could to trade up to get him
***** McKenzie tweeted on draft day that the Rangers had 5 centers they really liked with Pettersson, Glass, and Andersson being the first 3 mentioned and with the way the Rangers pick ended up being Lias, I think it's safe to assume Lias was their #3 guy
If there's anything information or evidence that can be added or seems at odds to this I'd love to hear it