Look at it by draft:
2011:
Mark Scheifele - Proven 2nd line C, potential 1st liner
Adam Lowry - Proven 3rd line C
Jason Kasdorf - Traded in Kane trade
2012:
Jacob Trouba - Top pair RHD
Connor Hellebuyck - Top goalie prospect
Jamie Phillips - Good goalie prospect
2013:
Josh Morrissey - top 4 LHD potential
Nic Petan - Made the club as 4th line LW, big time potential
Eric Comrie - Top goalie prospect
Andrew Copp - Made the club as 4th line C
2014
Nikolaj Ehlers - Made the club, currently leading rookies in SOG
2015 - Too early to tell, but looks to be another nice draft
Out of the above only Scheifele, Trouba, and Lowry has any sort of meaningful GP, but it's fairly obvious there will be many more impact players. Any draft where you get more than one impact player is an absolute win. Those expecting perfection "They could've had Brodin" are being very unrealistic. Go look at the
Thashers draft record especially the past few years. It's almost all obvious first rounders that made the show.