Luis Enrique believes Ousmane Dembele needs very little time to make a decisive impact, after the Ballon d'Or winner came off the bench to inspire Paris Saint-Germain's 3-1 comeback victory over Strasbourg.PSG were trailing 1-0 when Dembele entered the action, but the French forward helped turn the game around in roughly 20 minutes, delivering the kind of influence that left his manager full of praise.##LINKED_NEWS_69915##Speaking to French newspaper L'Equipe, Enrique revealed the message he gave his star before sending him on."I told him: if you play 25 minutes, provide a decisive assist and score a goal, then you don't need anything more than that. That is more than enough."There was, however, one blemish on Dembele's evening. He missed a penalty, highlighting a growing concern for the European champions: PSG have converted just one of the four spot-kicks awarded to them since the start of the season.##EDITORS_CHOICE##Enrique admitted his side are still searching for a dependable specialist from 12 yards, despite having several players capable of taking responsibility."Every time we played in a final, we had penalty-takers of the highest quality. We have plenty of players who can take a penalty, but the truth is that we are missing a genuine specialist. With Vitinha and Ousmane, we have enough players who can strike the ball well, but it is something we need to work on," the PSG coach acknowledged.Dembele, according to Enrique, was furious with himself after the miss. But the manager's wider assessment of the forward focused on his football intelligence and tactical maturity – qualities he believes were shaped by his time at Barcelona.21.45: (3.00) Parma (3.15) Torino (2.50)Asked about Dembele's understanding of the game and his influence in decisive matches, Enrique pointed to the foundations laid during the Frenchman's time at the Catalan club."He was at the best football school in the world, and that is Barcelona. In terms of his style of play, he already knew everything. Whenever you get the chance to watch a player who has come through Barcelona, you see someone who fits perfectly with what I like in football."He fully understands whether he needs to stay wide on the wing or move inside into midfield. Understanding the game is fundamental for us, and when you have players who already possess that experience, it takes us into a completely different dimension."