As much as Evertonians rallied behind their team and manager at the end of the 2021-22 season, there is still a lot for Blues to learn about the personnel who emerge from the Goodison Park dressing room on matchdays.
Manager Frank Lampard is obviously well-liked after inspiring the team to some stirring displays in the run-in, although he is still relatively new in the job. Fans have yet to see how he handles a pre-season or a transfer window, not to mention how he sets a team up after both.
The new players are also gradually revealing bits about their characters and playing styles. Yet while the likes of Dele Alli and Nathan Patterson are yet to feature anywhere near enough for supporters to form solid opinions on them, Vitalii Mykolenko is a little bit of a different case.
Of all the signings made by the Toffees in a frantic January window, he has been by far the most impressive and comfortably the most called on.
READ MORE: Frank Lampard has already explained key Everton quality James Tarkowski would improve
READ MORE: Frank Lampard must answer blunt Dominic Calvert-Lewin question as Everton transfer truth emerges
The 23-year-old played 1,056 Premier League minutes after signing from Dynamo Kiev - Alli, Patterson, Donny van de Beek and Anwar El Ghazi played 827 between them. And yet, Evertonians will still feel relatively uninformed about parts of the defender's game.
Mykolenko's temperament and tenacity are beyond question, of course. Given his personal circumstances and the fact he was dropped into a struggling outfit - he was also the man who replaced the man who was rebelling against an unpopular coach - he has showed admirable determination and professionalism.
Defensively there is a controlled aggression and focus to his work too, with his athleticism and energy also crucial in one-on-one situations.
But it's going the other way where Mykolenko is still something of a mystery - what can he offer going forward...going forward?
Although he scored a stunning volley at Leicester to win the club's Goal of the Season prize, in the main he didn't get many chances to venture upfield. Lampard adopted a defensive style at the sharp end of the season and although Mykolenko was used as a left wing-back, his brief was typically a cautious one.
In terms of passing, he averaged 0.6 key balls per game - Lucas Digne was at 1.7 in his first half of the season - while he also averaged just 0.6 crosses each match too.
However, on Sunday when representing his country in the World Cup playoff against Wales, the full-back showed a dash of something different.
As Ukraine applied the pressure in the second half in search of an equaliser, so much of their most productive play came through the Everton man. In truth, had his team-mates not been so profligate in their finishing, Mykolenko would have had two assists from two fine crosses - one drilled low and one floated into a perfect position to attack in the air.
It was one game, but an indication that Mykolenko can give something more when given the freedom to push on.
That wasn't something he had in the latter stages of the campaign, as Everton knuckled down and ground out results. But with time to work with the players in pre-season and some signings of his own through the door, perhaps Evertonians can expect a more enterprising approach under Lampard next season.
"We're not having possession like I really want, but we've shown an incredible spirit, togetherness and discipline, in terms of how we approach games and it's got us results," said the manager about the team's style ahead of the loss to Brentford.
"...Recently we've found a consistency in our game plan which has helped the players. When you're in a relegation battle you play under tension - it heightens the tension. So sometimes breaking the game down and playing more simply is an important thing to get the results you need. Not over-complicating things."
With that pressure lifted at the start of a new season - at least temporarily - some players may come out of their shell a little more. And full-backs and the adventure with which they operate are so often a barometer for a team's approach.
In Mykolenko, Everton know they already have a positive asset. And even if he is told to make more frequent vertical surges forward next season, he's unlikely to replicate the attacking output his coaches Leighton Baines and Ashley Cole produced on a remarkable basis.
But could he yet develop into a rounded wing-back who can offer defensive security and a persistent attacking threat? Evertonians will be eager to find out.
