The Argentine has nothing but praise for the club's new head coach and dreams of featuring at next year's World Cup
The Giuseppe Meazza side impressed against Juventus last weekend after previously winning their opening two Serie A games and Alvarez believes his boss deserves all the credit for his team's fine performances so far.
"I think we all have a clearer idea of what we're doing with Mazzarri. As a player you're at an advantage if you step onto the field knowing what you have to do, where your team-mates are and how to play as a unit," the Argentine told Inter Channel.
"I think that's the most important thing the gaffer has done and we're starting to look like a team now.
"Being in good physical shape gives you confidence too. We're reaping the rewards for all our pre-season work."
The attacking midfielder then went on to discuss his personal ambitions and revealed that the has set his sights on making the Argentina squad for the 2014 World Cup.
"I want to keep growing as a player, achieve great things here at Inter and perhaps make the Argentina World Cup squad – that would be a dream.
"I've been involved in the last few games but if I'm not playing well for Inter I won't get the call."