Edge
Kris King's Ghost
Why on earth would you put Boo with Kreider? Mika is an order of magnitude better player and works better with Kreider than Boo would ever hope to imagine. You don't just arbitrarily put demonstrably worse players with your best players to give them better stats or move them up in the lineup. If Mika got hurt or had a frontal lobotomy then put Kreider with Hayes who is also demonstrably better than Boo. If Hayes decides to surf and try the tasty waves in Malibu than maybe Boo can play with Kreider. Until that time no. You don't destroy one line to make a mediocre pro look more palatable.
I feel like there are certain prospects that we' tend to want to keep pushing.
If they're fourth line centers, we want them to be third line centers. If they're third line centers, we really want them to be second line centers. Etc. etc.
At some point, it's okay if a player is "only" being a fourth liner, or "only" a second pair defenseman.
Yes, chemistry is a component of success. But you always have to be mindful of where you're splitting the difference on who actually benefits.
If Kreider finds chemistry with Chytil, splitting the difference on who benefits is probably a little bit more balanced --- even if Chytil is "only" a second line center.
When you start replacing Chytil with someone like Nieves, it could work, but the balance is probably going to be off. In other words, Kreider probably elevates Nieves, but Nieves doesn't strike me as the type who would elevate Kreider. So you're taking more from Kreider, to elevate Nieves.
And frankly, if we're looking at historical context, players with Nieves' numbers at the collegiate and AHL levels haven't typically translated to top six forwards. Hell, you'd even find that the third line gets a little tricky.