Leinster will focus on how they can inflict pain on Racing 92 this week and worry less about what the powerful French can do in Saturday's Champions Cup final in Bilbao.
Stuart Lancaster is well aware of what Racing 92 are capable of, but must focus on what he can control.
Leinster, three-time champions, are unbeaten in Europe this season and have stood up to each and every challenge they’ve faced, namely the table-toppers in all of the respective feeder competitions.
"I devote all my time as a coach to thinking about what threats Racing are going to present but [also] what are we going to do to cause them problems," the senior coach told RTÉ Sport.
"[You] get that balance right and build it up during the week
"But ultimately all our attention, come Thursday, Friday, Saturday, should be on what we’re going to do because we know that at our best, defensively we’re strong, we’ve got a good set-piece and in attack we know we can score tries in different ways.
"But that all counts for nothing. What you’ve done in the past, in the pool games, in the quarter-final, the semi-final counts for nothing because every game starts from zero."
The former England boss says he is not shocked at how well the team have coped with losses through injury at various times of Sean O’Brien, Josh van der Flier, Robbie Henshaw, Luke McGrath and now Fergus McFadden, to finish top of their Guinness Pro14 conference and win eight from eight in the Champions Cup.
"[I’m] not surprised but pleasantly pleased that we made developments in our games that mean we’ve had to come through [tough games]," he said.
"When you looked at the pool at the start, Glasgow, Montpellier, Exeter, all three teams are currently top.
"Glasgow are top of their conference, Montpellier top of the Top 14, Exeter top of the Premiership and then you have to go and beat the champions of last year, Saracens and then Scarlets.
"[I’m pleased with our] adaptability and our ability to play in different ways to beat differing types of opposition.
"I think there’s been a step up this year.
"We’re going to need that adaptability this weekend because Racing present different threats to Scarlets.
"I think they're a side that has come to their peak at the end of the season, when I look at their performances towards the end of the year they have been getting better and better and better.
"Two notable performances [stand out], Clermont at home in the quarter-final was a huge win for them and then obviously you back that up by beating Munster in the way that they did.
"I know Munster came back into the game, but the damage that Racing did in the first-half [was severe].
"They obviously beat Agen at the weekend with a much-changed team, but it was [still] an unbelievably strong team.
"The depth of their squad is phenomenal.
"Any team that can leave Dan Carter on the bench is a serious threat.
"They've got threats all over the park, they've rested a lot of their key men for the weekend's game and it's a serious challenge."
