Barcelona have wasted little time acting in the transfer market.Last week, the La Liga champions signed Anthony Gordon from Newcastle United for €80million (£69.3m; $93.2m). That followed news they were in talks over a move for Atletico Madrid’s Julian Alvarez potentially worth around €100m. And Bernardo Silva is also in talks with Barca (and Atletico) after his Manchester City exit.How they can afford all this is one question. What their priorities are this summer is another. Here, we tell you what to expect.The information found within this article has been gathered according to The Athletic’s sourcing guidelines. Sources with knowledge of transfer dealings, who asked to be kept anonymous to protect relationships, have been spoken to before offering the clubs involved the opportunity to comment.Who will make key decisions this window?As in the two previous seasons, sporting director Deco and head coach Hansi Flick will have the most responsibility when it comes to the club’s transfer strategy. All players monitored and any offers or deals made must have the pair’s approval.Then there is club president Joan Laporta, who likes to be informed of every step and makes his opinion known to Deco and Flick. Laporta trusts their judgement, as in the case of Gordon, who was a special request from the German. But he also has personal views on specific players such as Alvarez — the president is a huge fan of the Argentina striker, another reason why Barca are chasing him this summer.Joan Laporta is a big fan of Julian Alvarez (Josep Lago/AFP via Getty Images)What positions will they be looking at in the summer window?The main priority is a centre-forward. Robert Lewandowski is leaving Barca when his contract expires this summer and the Catalans need a new reference point up front. The club were also targeting a wide attacker, but that has been covered with Gordon’s arrival.The final priority is defence, with a player needed who can play on the left side at the back. A left-footed centre-back would be ideal, but that could change depending on which players leave.Beyond the positions they are actively looking to strengthen, the club are also open to signing players they deem to be market opportunities, most likely joining as free agents or at a reasonable price.What is the manager’s priority?Flick’s priority is a Lewandowski replacement.The club granted him his request to move for Gordon, who can help in multiple positions along the frontline, including at No 9. But bringing in a new dedicated central striker is seen as pivotal.In January, Flick told the club he wanted to explore the possibility of signing a new centre-back in that window given the amount of injuries Barca were dealing with. Gerard Martin’s impressive reinvention as a left-sided centre-back means there is less of an urgent need in that position, but it is one Flick would like to bolster for the long term.