At the time it was a fantastic deal. I was never as high on Silfverberg as most of the fanbase. I saw a guy who had an amazing release on his shot but very little else. He might have convinced a number of people he had high potential after his final SEL season, but I think it's been established that he's a 3rd line guy right now, with the potential to be an average 2nd line forward if he improves his footspeed. Not exactly a player we won't be able to live without.
Noesen was a solid prospect, but he took a step back in his final season. He looked like he could be a top 6 glue guy, but at this point he's probably more of a 3rd line powerforward if he makes the NHL. Again, not a player we will regret not having in the future.
The 1st round pick was obviously not expected to be as high as it was, and it's really the only thing we should be regretting having given up. That pick should have been in the 15-20 range, and if all worked out as it should have, it would be considered another piece that didn't really hurt to give up. It's too bad Nick Ritchie fell to the Ducks at 10 as well; as far as I am concerned that kid is the next Bobby Ryan, and he couldn't be going to a better drafting/developing team in the Ducks. I think looking back if we regret the trade it'll only because of the great player Ritchie becomes.
I think people are underestimating how good of a player Bobby Ryan is. People forget he was our best forward and best player in the first half of the season, prior to his injury. If I'm not mistaken he was on pace for something around 30-35G and 70P with 150+ hits as well. That's a very valuable player. If we can lock a player like that up long-term, well it's hard to argue losing the trade, even if we gave up more value than we'd probably like.