Why do you see Costa shine here? He's style is very similar to Cuadrado imo. What's more, according to people who observe Bundesliga, they also share their flaws - decision making. He could be useful in the CL but in Serie A a player like Bernardeschi is a better fit imo. He has more vision, better shot technique, can cover a lot of positions on the pitch.
Costa has a lot more power to him and he can give us a lot of pressure upfront. He's great for counters plus he can get past players quite easily. Look at Salah. The guy is completely brainless and just look at his stats. Sometimes those players are quite useful and imo we could use one of those. Plus, I also think he's not braindead like Salah and has more qualities to him.
Not to mention he's younger and Italian.
Him being Italian doesn't mean anything. We're done with years focusing on Italians only and we've made progress.
Sandro, Licht, Khedira, Pjanic, Mandzukic, Dybala, Higuain, Cuadrado. Look how many of our starting players aren't Italian. No need to mention the bench as well. Not just that but look at the players we sold: Pogba, Vidal, Tevez, Coman, Morata etc. It's majority of our best players and core of the squad, bar Coman.
I don't mind buying Italians. But only if they are top level or very promising which usually isn't the case. Buying Italians just for the sake of it means dogshit really.
Obviously if the price for Berna is 50mln+ and D. Costa cost 25 mln then we should go for the Lolzilian.
There's absolutely NOTHING that justifies the price of Berna who's rated above 50mln. That's just crazy and sad at the same time. He's simply not worth the risk while I can't say the same about Costa.