Prefer Sesko if we're raiding Salzburg, personally.
Guessing they're going to try to hold on to Sesko for a year, given that he's probably a year away from selling for at least Adeyemi/Aaronson money.
Salzburg is a great example of the rewards to be reaped based on a club's reputation. They spent, sure (though much less than they've received), but in so doing they established themselves as one of the premiere destinations for young talent. Haaland as an example turned down bigger moves in order to go there because he knew that he'd get the chance to showcase himself. The lineup you can put together of players Salzburg has sold is surreal:
GK: Gulacsi (Leipzig)
RB: Lazaro (Benfica)
CB: Caleta-Car (Marseille)
CB: Upamecano (Bayern)
LB: Bernardo (Salzburg; he came back)
CM: Mwepu (Brighton)
CM: Keita (Liverpool)
FW: Mane (Liverpool)
FW: Adeyemi (Dortmund)
FW: Haaland (Man City)
Plus: Szoboszlai (Leipzig), Aaronson (Leeds), Haidara (Leipzig), Daka (Leicester), Berisha (Reims), Lainer (Gladbach), Wolf (Swansea), Dabbur (Hoffenheim), Samassekou (Hoffenheim), Minamino (Liverpool), Hwang (Leipzig), Schlager (Wolfsburg), Hinteregger (Frankfurt), Kampl (Leipzig), Pongracic (Dortmund).
You could go pretty deep in CL with a squad consisting entirely of alumni from a club in a league that is generally adjudged to be worse than the English second division.
I've banged on about it over the years, but this is still a niche that no one has filled in the Premier League: the team that all of the bright young talents go to in order to show their stuff and get the big move to a top-tier team. We're well-positioned to be that; we have a reputation for using our Academy that is frankly a bit undeserved in recent years, and we have a handful of players that we brought in that have gone on to compete at the highest levels. It requires real courage, because you have to commit to playing youngsters (and also have to understand that many will leave as soon as they've demonstrated their quality), but there is a path to climb up the PL there, and sooner or later someone is going to have the guts to take it. Might as well be us.