Sanchez is more unrealistic than Griezmann.
Vela will be a step below in quality and we dont need another left footer anyway.
Also there's no good experienced goal scoring winger,someone who's within our price range available either.
A step below in quality? If you mean from Tévez then yeah, almost everyone is a step below in quality, el apache is one of the best players of the entire world.
But Vela isn't bad, I mean, he probably isn't one of the most flashy names around, but he certainly has quality, this season he struggled with injuries and scored 10 goals and 4 assists, but the past 2 seasons he was recogniced as one of the best players in La Liga, scored 21g14a in 2013/2014 and 14g12a in 2012/2013. He's 26, his numbers are increasing and his performances getting better, I wouldn't be surprised to watch him having 20+g10+a next season too, for a guy who plays in all three fronts of attack, those numbers are great.
Would he make it at a big club?
I don't know, he looks much more mature than what he did on his failure spell at Arsenal, he has started to perform with the NT, I don't know maybe it's time for taking the next step in his career.
A Vela-Morata-Dybala attack may look underwhelming, but wait till Dybala and Morata explode, then we can add a better name than Vela. I don't know, I just don't want Mario Mandzukic here.