The Rangers can't trade their 1st rounder. They can't trade their 1st rounder even if the team rebounds and it ends up being lower in the round.
If you want a "home run" 1st line forward you need to draft him in the 1st round, preferably in the top 5 or top 10. The Jamie Benn's of the world are the exception not the rule.
Out of the entire 2008, 2009, 2010, 2011, 2012 and 2013 drafts, there are 41 players that have scored 40 career points.
13 were chosen in the top 5.
22 were in the top 10.
25 were in the 1st round.
Remaining players 16 players:
Derek Stepan C 243 61 99 160
Ryan O'Reilly C 293 54 90 144
Adam Henrique C 148 33 45 78
Craig Smith C 145 24 39 63
Zack Smith C 231 28 33 61
Andrew Shaw C 115 30 26 56
Marcus Kruger C 157 17 35 52
Brandon Saad L 80 19 29 48
Cody Eakin C 106 18 30 48
Gabriel Bourque L 104 22 24 46
Matt Martin L 232 18 27 45
Matt Calvert L 108 22 22 44
Brendan Gallagher 74 24 20 44
Cam Atkinson R 92 23 21 44
Kyle Clifford L 227 21 21 42
Tommy Wingels C 110 17 24 41
How many of those players will put up 60 points once, let alone consistently in their career? How many will have a PPG season?
There have been 65 players from the '05, '06, and '07 drafts to score 60 points.
10 of them were top 5 picks.
19 were top 10 picks.
37 were 1st rounders.
Out of the remaining 28 the only players to average more than .5 PPG are Paul Stastny, Jamie Benn, James Neal, Milan Lucic, Brad Marchand, Patric Hornqvist and Carl Hagelin.
If the Rangers want a no-argument 1st liner they need to start drafting forwards in the 1st round. If they can't suck enough to get a pick on their own, then they need to trade up.