lumbergh
It was an idea. I didn't say it was a good idea.
To be fair, you did name just one second round pick. Most of those guys being top of the draft type picks. That's a bit different than Gravel, or even a more defensive player like Forbort that was taken in the middle of the 1st round.
The sophomore slump thing is usually for 19-20 year old's, not guys in their mid 20's that have been in a pro environment for a couple years. You can't discount the possibility though. It's not easy playing consistent defense at the NHL level. Those top forwards will find a flaw. 50 short games ago nobody knew for sure if Forbort or Gravel could play, so, we have to hope they can keep improving.
All right, I'll just pull similar (Defensemen in early to mid 20s) players from other teams:
Point production up or roughly even in 2nd year, often with upward trajectories
Sami Vatanen (Ducks), Kevin Connauton (Coyotes), Torey Krug (Bruins), Jake McCabe (Sabres), Dougie Hamilton (Flames), Justin Faulk (Canes), Trevor van Riemsdyk (Hawks), Tyson Barrie (Avs), Seth Jones (BJs), John Klingberg (Stars)...
I could keep going, but I don't have all day. Again, the "sophomore slump" is pretty much a myth and an excuse. No real truth to it.