In a perfect world, yes. But this is hockey, not football or basketball where the path to a championship can be blazed by a superstar. If it could, Ovi would have far more cups. It takes an entire team which has no major weakness through the lineup--and if something is "weak" (like goaltending for the 2022 Avs or the 2010 'hawks), it's average, at worst.
The 'hawks have Jones and Debrincat right now, and Jones is, at best, a Brian Campbell. He's not a Keith or a Seabrook. He's not even in the same league as those two. He's O-biased but is merely okay in his own zone--he's not a 3-zone monster like Keith was. Ergo, he's need a defensively stalwart partner to have success as our top guy, and we don't have that in our system; there is no Hjammer. Murph is a very pale comparison who wouldn't crack the top-4 on ANY of our cup teams. Ergo, we have a major missing D-piece which would by über-expensive in the FA market (and we're already paying out the urethra for Jones no thanks to the Legume-reckoner), so that piece likely has to be developed from within. Unless Stillman, Vlassic, or Mitchell have some untapped D-talent they haven't shown yet, we haven't got that piece yet, and it'll take the better part of a decade to develop that. Further, in spite of the hype of certain players, they aren't it until they are. So, hypothetically, if Phillips is the next big thing on D can can be a #1-#2, we can't consider him a #1 or a #2 until he is performing as such.
By that time, Debrincat and Jones will be on the wrong side of 30.
Debrincat is, by all definition, the right player at the wrong time. It would be like having the 2010 Patrick Kane circa 2001 or 2002. Instead we got, and developed him in 2008, which is where a O-biased winger like Debrincat needs to come in--hitting their prime about 2-3 years *after* we get the D-core set.
While I certainly wouldn't be upset at keeping Debrincat in the least, I think the 'hawks need to be open to moving him for a the right top-end pieces. Same with everyone else. If there are no moves then keep Debrincat (keeping in mind he has to be qualified above $9M).