Igor Thiago joined the London club from Club Brugge for £30m in July 2024.
More than the midpoint of the campaign, Brentford find themselves in dreamland.
With victories in their last five outings, and a Samba striker banging in the goals, suddenly Bees fans are dreaming of thoughts of trips to European capitals next season.
A convincing three-nil win over the Black Cats moved Keith Andrews' side into fifth in the Premier League – a place that was good enough to secure Champions League football last season.
Solely table-toppers the Gunners have accumulated more points over the past six games.
There is a long way to go yet but Brentford are firmly in the fight for continental football.
Few was envisioning this last off-season.
Thomas Frank had departed for Spurs after a seven-year stint in charge, a period in which he had not only got the club promoted but also established them in the elite division.
Skipper their Danish midfielder left for Arsenal and goal-scoring duo Bryan Mbeumo and Yoane Wissa – who scored a total of 39 goals in 2024-25 – were out the door, joining Manchester United and Newcastle respectively.
Set-piece coach Keith Andrews was elevated to replace Frank, while there was no striker among the off-season arrivals.
A season of difficulty, possibly even the drop, was forecast. But here we are in January with the club in the top five.
So, what is behind their success?
The club's decision not to bring in another striker was in part down to timing, with Wissa's move not going through until the final day of the window.
But they also were aware they had a £30 million striker already chomping at the bit.
The 24-year-old joined from Belgium in July 2024 for a then-record fee, but was hindered by fitness issues in his debut campaign, going without a goal in his initial outings.
Thiago has gone about compensating for lost time this season, though, with his brace against Sunderland taking him to 16 league goals – the most by a player from Brazil in a single English top-flight campaign.
Considering the fellow Brazilians who have come before him, that is some accomplishment, especially with 17 games left to play.
"He has been a breath of fresh air," former Liverpool midfielder an analyst said. "He is a physical specimen, quick, strong, but more skilled than people think. Good with his feet, either foot, he can score with both. You can see he's full of confidence. His statistics are fantastic. He must be so proud. That's a big compliment to him."
That only Erling Haaland, Harry Kane and Kylian Mbappe have scored more in any of the continent's major leagues to this point shows the standard he is operating at.
And it is not just the quantity but the timing of the goals that have been so vital for his team.
His first goal against the Black Cats was his seventh opener of the season. Given how often we are told the significance of the first goal in a game, having someone you can depend on to take that first big chance cannot be overstated.
Before the game against Sunderland, no player to have attempted at least 30 shots this season has a better shot accuracy rate than the striker's 59.1 percent.
He finds the target. Achieve that consistently and the goals will – and have – come.
Given the hardships he had in his youth, where he labored in construction to provide for his family following the passing of his father, perhaps it should be unsurprising that high-stakes situations on the pitch is something he takes in his stride.
"The recruitment team deserve a lot of praise for the type of players they bring in and characters," the manager said. "This is really impressive. He is a really special person who has fitted into life very well. He has had to earn this path. He has worked for his journey and grafted. He has got serious grit about his personality. He is developing his skill set constantly and we are learning more and more about him. He is a largely complete centre-forward."
Igor Thiago is the headline act but Brentford are not and have never been a one-man band.
While they had star players – a host of talent – under their previous boss, they were always seen as a team stronger than the sum of their parts.
The concern was that once the manager left, that may not be the case, and that the sum of Brentford's parts alone might not be enough to stay up.
Consequently, appointing their set-piece coach, with a blank managerial CV, and just a year at the club was seen by those external observers as a huge risk.
A maiden role is a test for anyone, let alone when it comes in the world's toughest league and having made the jump from specialist coach to the top job.
But given that Ipswich boss one candidate was the only other option that Brentford looked at, they were clearly confident they had the correct candidate.
So far, as often seems to be the case with the brains trust at Brentford, it looks as if they were vindicated.
The new boss won just a single of his first five league games in charge but significant home victories against Manchester United, the Reds and Newcastle have followed.
Results that, following their excellent recent run, could prove increasingly important in the pursuit for European qualification.
"We're in fine fettle and playing really well. We are playing with courage and conviction in everything we do with and without the ball," Andrews added. "We're happy with how we are going but we want to keep striving."
In a league where fourth and 15th are currently separated by just eight points, they have little choice, because things could quickly look very different.
But, for now, Brentford are beating the predictions. And the longer that lasts, the closer to fruition those dreams of Europe will become.
Elara is a seasoned writer and digital nomad who shares her adventures and expertise in lifestyle and technology.