According to rugby specialists, the young playmaker has shown that he merits the first-choice spot for the national team's fly-half versus the All Blacks on Saturday.
Fin Smith produced arguably the best defensive display we have seen by an English fly-half in several years.
His courageous approach through regularly completing his tackles against an aggressive Fiji side was impressive.
His game management was also immense - he demonstrated a perfect blend of skill and control, while executing several crucial choices during moments were not going to plan in the first half.
His capacity to calm the team tactically and make big calls is something he has truly mastered.
In my opinion, Fin Smith is England's primary playmaker and he should start against the All Blacks next week.
I think head coach the England coach views it similarly as well, because Fin has proven he can perform during important international games.
George Ford began the previous weekend against Australia due to captaincy considerations, and part of that choice aimed at ensuring consistency while acknowledging his form during the visit to South America.
But England's performance against Fiji was a significant improvement compared to the display versus the Wallabies.
Australia were defeated on Italian soil on Saturday, therefore we must not get overly excited about that victory, that could have been more comprehensive considering how off the pace Australia were.
Fiji, on the other hand, were much more threatening and presented a far tougher test.
The young playmaker is still only 23 - looking ahead 24 months, with Ford pushing him while providing support, I think Fin will be in an excellent position as a player.
The Harlequins star must also be regarded as a possibility when appropriate and versus the right opposition.
He's progressing in his career and is starting to establish himself, but he also requires liberty to demonstrate his unique qualities.
The All Blacks brought on their impact player, who registered the decisive score to beat the Scottish team, demonstrating the significance of possessing individuals capable of creating a real impact from the bench.
That kind of presence can be the difference between winning a World Cup or not.
McKenzie observes the match develop from the bench and thinks about how to create an impact upon entering.
His decision-making and mistake frequency have improved significantly from his initial career.
If we can get Smith to be that kind influential player, including him among substitutes could be beneficial.
However, at the moment I believe Marcus represents the solution at full-back, making it a role that is still unclaimed.
New Zealand are likely to punt testing England's backfield, therefore it must to be watertight.
It is a position that needs transforming into a real strength, in defense and in terms of the counter-attack danger.
Right now, I believe Smith functions as full-back in top-tier rugby.
I find it difficult to identify the advantage fielding him there.
I prefer the ball under his control as much as possible, but I believe that should be among starters, especially in the final quarter.
There are obviously a lot of similarities between Ford with Smith.
Smith possesses the capacity executing the correct choices during tense moments - his instincts are not something you can really taught.
I recall as he received the ball during one phase just inside his own half appearing like it could be on if they spread play.
However during these milliseconds he calculated they needed to turn the opposition as we are leading points-wise, therefore he punted to pressure them back and turn pressure.
This represents the type of playmaking securing titles while claiming World Cups.
He additionally possesses that calmness during intensity directing teammates around him, and the understanding that he mustn't always need to be the first option.
I hope to witness him receiving the opportunity to show that at the highest level next week, just as we have seen the veteran accomplish, especially at domestic matches repeatedly and week out.
During the South American tour, Ford also stood up in difficult situations, previously you could argue occasions existed where he didn't fully delivered in the very highest-pressure matches.
I believe England possesses playmaking options capable of performing the job, but with Fin's defensive work combined with everything else, it makes him the better-rounded all-round player.
It also means you don't have to modify your defensive system while fielding an assertive player in the fly-half channel, rather than someone who is a little more reserved.
One might make a strong case favoring Ford beginning with Smith coming off the bench.
There are so many considerations that go on privately, but whichever way the coaches choose to proceed, it will give the opponents difficulties.
That has not always been the situation facing New Zealand, when attention was simply on selecting the optimal individual.
This time, either playmaker selected can put New Zealand under real pressure.
Fin's ability to pick the right kick and execute enabling possible territorial gains can take all the stress off the national team.
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