Vidal is the only midfielder who offers something different than "pass pass pass, hold hold hold, pass pass pass", so he appears a good option, especially when he comes on as a late energetic sub, but he's also not good enough at this point of his career and if he played 15 games in a row as a starter, people would pick on him as well for his plethora of deficiencies, like not being able to hold on to the ball against better teams like Madrid's midfield.
Team needs an attacking midfielder who can play the final pass, 2 fullbacks, a winger and a striker. Good luck finding all that.