Respectfully, I disagree with the bolded notion. Yes, Chytil, Andersson, and Howden are young, but for the amount of time they've been in the organization, none of them have shown to me that they have the capability of one day filling in the void at 2nd line center.
Again, just my opinion, but Chytil is looking like a winger at the next level. Could be ditto for Andersson, but he's more of a natural center than Chytil is, IMO. It's about the speed in which each guy processes the game. Andersson thinks the game way better than Chytil, but Chytil has better athleticism. Chytil doesn't think the game fast enough to be a center. He's in over his head at center against NHL competition; I have no problem with him spending some time in Hartford.
Howden? Yeah....he's a 3rd line center. I don't see the top 6 upside there unless he takes some gigantic steps in the next year.
Buchnevich and DeAngelo are hardly prospects. Buchnevich isn't going to be worth his next contract. Let some other team give him 6 years at $5.5 million/year for 50 points a season. DeAngelo isn't showing that he should be the 2nd pairing defenseman over Fox....so far. Both very similar players and DeAngelo held out this summer. The front office doesn't have short term memory when it comes to those things.
The Rangers can afford to trade away a LHD prospect or two. They can afford to fill three teams worth of LHD with just the prospects that they have now. Keep the blue chippers, yes, but sell high on the others and fill other positions of need.