As we approach the opening of our window, the only real gap we have is center ice. We have a team and a half's worth of wingers, a great and youngish goalie tandem, and the defense will work itself out by in-house options over time (not that we couldn't use a stop-gap LD right now and probably for next season). So looking at our center depth:
Mika - I love the guy, and we got him in a steal even if he stayed a 2C level player and never took that step forward (that he most certainly DID). Still, his next contract starts at age 29 and there are some long term health concerns. He may very well end up a "transitional" player for us in the history books and not be a part of our next "contending" team. If we can find a young enough 2C to groom, and Mika signs for let's say 5 years, then there's probably a contract number that makes sense to have him be part of our next core.
Chytil - Great kid, but I'm just not convinced that he's an NHL center. There's still a chance that he actually learns how to take faceoffs, develops his playmaking side, and becomes that 2C behind Mika thereby solving all of our problems, but he may just stay a middle-six utility forward that you can plug in as a wing on other lines or keep in the 3C to work on that role further. A Fast with a little more offense and can maybe play C. Which wouldn't actually be a bad outcome for him individually.
Strome - He's much-maligned, but a great fit as a stop-gap guy for this and next season. I doubt Seattle would take him as a 1-yr guy, so he can be exposed easily. Not a big deal if they take him, regardless. If there's no trade to be made this deadline or next, and he goes unclaimed in expansion, I don't actually mind if he's a "self-rental" for the '22 playoffs (our first real kick at the can). He can walk with a hearty handshake and thanks.
Howden - I don't really mind if a coach has a "12th forward pet project." He's young, eager, has a bigger frame, a good motor...he's just not very good at hockey at the NHL level. He doesn't count as "center depth" when talking about the organization quite yet. I would have rather had Athanasiou as the 4C and stick Howden on the right most of the time. Fight it out with Barron.
Barron/Henriksson/Vierling/one of the NCAA UFA - We just don't have NHL center depth now or on the horizon, unless Zibanejad signs a team-friendly deal and stays relatively healthy, Chytil develops into a 2C over the next two seasons, AND one of this cluster becomes a real 3C.
We need to go out and GET someone.