According to rugby specialists, the young playmaker has demonstrated that he merits the first-choice spot as England's fly-half versus the All Blacks on Saturday.
Fin Smith produced without doubt the best defensive display observed from an England playmaker for quite some time.
How he fronted up by consistently making defensive hits versus an aggressive Fijian team stood out remarkably.
His game management was also immense - he showed a perfect blend of skill and composure, while executing several crucial choices during moments were not going as expected during the opening period.
His capacity to calm the team tactically and make big calls is something he has really nailed.
In my opinion, Fin Smith represents England's primary playmaker and deserves to begin versus the All Blacks this weekend.
I think head coach Steve Borthwick sees it similarly too, since Smith has proven he can perform in big international games.
George Ford started the previous weekend against Australia due to captaincy reasons, with some aspect of that choice aimed at ensuring continuity and reward his form during the visit to South America.
But England's showing versus the Pacific Islanders represented a marked step up from the performance against Australia.
The Wallabies lost on Italian soil on Saturday, therefore we must not get overly excited with that win, that could have been by a larger margin considering how below par the Australians were.
The Fijian team, on the other hand, proved significantly dangerous while offering a far tougher challenge.
The young playmaker is still only 23 - looking ahead two years, alongside Ford pushing him while providing backup, I believe Fin will be in a very strong place as a player.
The Harlequins star also has to be considered as an option at the right time and versus the right opposition.
He is developing in his career and is starting to establish himself, but he also needs the freedom to show his unique attributes.
The All Blacks introduced their impact player, who registered the match-winning try to beat Scotland, demonstrating the importance of possessing individuals capable of creating genuine influence from the bench.
That kind of player can be the deciding factor separating victory a World Cup or not.
McKenzie watches the game develop from the bench while considering regarding ways he can make a difference upon entering.
His choices and error rate have enhanced substantially since his early professional days.
Should we develop Marcus as that kind influential performer, including him in the backfield might prove beneficial.
However, currently I believe Marcus is the answer at full-back, so that is a role remaining unclaimed.
New Zealand will kick to challenge England's defensive line, therefore it must remain impenetrable.
It is a position that needs transforming into a genuine asset, in defense while regarding of the counter-attack threat.
Currently, I believe Marcus is a full-back in top-tier rugby.
I find it difficult to see the advantage of playing him there.
I prefer possession in his hands as much as possible, though I think that should be among starters, particularly in the final quarter.
There are obviously a lot of similarities between Ford with Smith.
Fin has the ability to make the correct decisions under pressure - his instincts are not something that can be coach.
I recall when he got the ball during one phase just inside his territory and it looked that opportunity existed should they swung it wide.
But in those milliseconds he thought they needed to turn the opposition since England were leading points-wise, therefore he punted it to pin the opponents and turn the screw.
That's the sort of fly-half play securing titles and wins World Cups.
He additionally possesses that calmness during intensity to organise teammates around him, and the understanding that he mustn't constantly serve as primary option.
I want to see him given the opportunity demonstrating that at the highest standards soon, similar to the veteran do, especially at club level repeatedly and week out.
During the South American tour, the experienced fly-half similarly excelled in difficult circumstances, previously one might suggest occasions existed he has not quite delivered during extremely tense matches.
I think England possesses two fly-halves who can do the role, though Smith's defensive work on top of everything else, establishes him as the more complete versatile performer.
It also means there's no need to modify the defensive structure while fielding someone aggressive occupying the playmaker position, rather than an individual being a little more passive.
You could also make a strong case favoring Ford beginning with Smith coming off the bench.
Numerous factors occurring behind closed doors, however the management decide to go, it will give the opponents difficulties.
That has not always been the situation against the All Blacks, where the focus was simply on picking the right player.
This time, either playmaker selected will pressure the All Blacks significantly.
Fin's ability selecting optimal kicks and execute for a potential territorial gains might relieve all the stress off England.