Liverpool answered a number of questions during their impressive showing at Tottenham Hotspur on Thursday.
But the comprehensive victory ultimately prompted a poser that has lingered for some time around the Premier League and world champions.
And it's one Jurgen Klopp would ideally not have to address in the coming months.
How are Liverpool going to replace Gini Wijnaldum?
Of course, it isn't 100% guaranteed the Dutchman will be plying his trade elsewhere next season.
Realistically, though, Reds supporters are becoming increasingly resigned to Wijnaldum walking away from the club when his contract expires at the end of the campaign.
Not that there will be any rancour in the direction of the amiable midfielder, whose £25million arrival from Newcastle United in the summer of 2016 ranks alongside the most canny captures of the Klopp era.
Wijnaldum would depart with the best wishes of everyone having played such an integral role in helping Liverpool claim a sixth European Cup and end a 30-year wait to be crowned champions of England.
Barcelona have long been considered the eventual destination of the Holland international, not least because his former national team coach Ronald Koeman is - at least for the time being - in charge at Camp Nou.
Few would begrudge the 30-year-old one final adventure given his immense contribution to recent Anfield history.
And it hasn't ended yet.
Witness his performance in North London when asked to temper his natural game by retreating into a defensive midfield role with Fabinho injured and Jordan Henderson again being employed in central defence.
Wijnaldum delivered. Selfless yet superb, while also giving Thiago Alcantara greater room in which to prosper, it was a prime example of why Klopp has continually placed so much faith in such an intelligent, hard-working and skilled player. Liverpool's defensive injury plight means he may be asked to reprise the role during the coming weeks.
Critics of Wijnaldum point to his goal return for Holland and ask why he can't produce to such a level with Liverpool.
That, though, is to spectacularly miss the point. He doesn't do that under Klopp because he isn't asked to. Instead, he does the job for which he is detailed, whether that be shielding the defence or, as is more usual, as one of the non-stop cogs a little further upfield that provide the physicality and tempo demanded of this Reds vintage.
Wijnaldum also had the added quality of rarely being injured.
In the 212 games Liverpool have played in the Premier League and Champions League since his arrival, he has failed to feature in just nine matchday squads.
And only five times during that period has he failed to at least come off the bench.
Given the availability issues that have hampered Liverpool this season, such durability is worth millions. After all, a player is of no use unless they are available for selection.
Oh, and then there's his happy knack of delivering on the biggest stage, from scoring in Champions League semi-finals - three in four appearances - to key Premier League strikes against Chelsea, Manchester City, Arsenal and Tottenham.
Wijnaldum will have a huge part to play during the second half of the season with Liverpool still in the title hunt and chasing a third Champions League final in four years.
Nobody can doubt his Liverpool commitment. Where the Reds go after his increasingly probable summer departure isn't quite so crystal clear, however.
