That's AA's declared plan. He feels that there was a market arbitrage opportunity with players that had trouble in other organizations - Escobar, Rasmus, etc.
I've said it before, I'm not sure you can win a marathon 162 game season with a core of Latin players, for exactly the reasons you say. It's not a racist or bigoted statement, but rather an identification of different cultural norms. But when your clubhouse starts to get dominated by Loviste, media blowups, giggling at errors, showboating at shortstop (Escobar), arguing with the umps incessantly ("I'm passionate about my performance!"), then you get what we have.