Not including Pouliot since he's going to be a regular going forward:
1. Sprong
2. Murray
3. Sundqvist
...
my list has sprong a leak but it doesn't matter because beyond these 3 guys I don't think any of them could make an a real impact anytime soon. Maybe that Simon kid? I dunno.
Bottom line is if those 3 all become good players (2nd line winger, starting goalie, and good 3rd line center) then I would be happy with our prospect group. Getting some grinders out of guys like Wilson, Rust, etc. for 3rd and 4th line duty might also happen and anything else is just gravy.
I have no problem with the prospects we have had. I remember the 90's when we had no prospect worth anything for an 8 year time frame. With this group we have guys like Pouliot, Maatta, Dumoulin, Murray, Sundqvist, Sprong, Jarry, and others that have shown they are ready now for NHL duty or have the potential to be good players.
It could always be better but when you have your core best players signed for 5+ years that include Crosby, Malkin, Kessel, Letang, and Fleury with promising young players like Maatta and Pouliot that is a nice group to build around. If the Pens can add guys like Sundqvist (3rd line center), Murray (back up goalie), and Wilson (4th line), Rust (4th line), Dumoulin (3rd pairing) over this season and the next then I would call that a decent flow of prospects added to a nice core.
The Pens have had better like the mid to late 80's when we had guys like Mario, Recchi, Stevens, Errey, Bourque, Looney, and other core players to build a contender and also in the early 2000's with guys like Crosby, Malkin, Fleury, and Staal. The thing about those days was the team sucked so we added great prospects and other pieces to build Cup Champions. I believe this time we have added to the core and have better guys that can add to the core than we did the first go around. After those first two Cups we never really added hardly any prospect the next 8 years like the guys we are adding now like Maatta, Pouliot, Dumoulin, and hopefully Murray, Sundqvist, Sprong, and others over the next couple years.