I think he needs to be a more responsible player, period, before moving to center.
I disagree. Galchenyuk is not George Parros, and if he was responsible enough to play on Plek's wing, then he's responsible enough center an exploitation line. You are completely ignoring the possible upside to Galchenyuk's offensive game. I mean, all you talk about is his defensive responsibilities as if he is this horribly liable play like Parros.
If DD has been good enough defensively to center lines for the past 4 years, then so can Galchenyuk.
Galy is a smart player, smart players adapt fast.
My point about Seguin was to answer your question about who in their 4th season turned back to center, well, there it is. No ill-effects whatsoever in his development, actually playing wing likely contributed to his success this season, developing other areas of his game, sure Boston had better centers than us in their top two but the point remains, this didn't hurt Seguin a lick. In fact, it most likely helped him mature as a player, not to mention they're in two different situations, Seguin is 22, Gally is 20, Seguin didn't miss an entire year a year before his draft year. Seguin had close to 200 games under his belt. Playing wing until Gally improves under developed areas of his game is not a bad thing and it won't hurt him at all once he transitions to center.
Maybe I should have been clearer in that I meant on a team who's centers weren't really that great to begin with, which wasn't Seguin's case. But even in his case, a lot of debate was going on about him needing to play center in that 3rd year.
Maybe our difference of opinion comes from me believing that our team would be much better off with him as a center because I see him potentially start to come out of his shell next season. Our centers struggled to put up 50pts. So I rather try Galchenyuk there who's already on a .5ppg career average, which should increase next year. Give him better wingers on an exploitation line, with top PP minutes, I see little reason as to why he couldn't outperform our other centers, which only benefits us.
DD's not going anywhere imo, and he's a good piece as a complimentary guy, but I think the team would go through more ups and downs and likely have a worse record with Gally centering a line and DD on the wing and you can't have 2 centers needing sheltering.
That's fine, except he isn't used as a complimentary guy now. You said it, we can't have two guys that need sheltering. I think it's pretty clear who has the better upside between Galy-DD.
DD put up 52pts playing on an exploitation line, with our best wingers, while always being the go-to guy on the PP as well. I see no reason why Galy who's already a .5 ppg career pace player not outperform this.
It's also why I rather move DD. He's just way too uni-dimensional. There seems to be only one spot in which he can succeed. I would want such a difficult player to maneuver to put up way more than just 50-55pts.