Fact of the matter is we don't really need another player who takes a lot of time on the ball, or who always tries to beat his man and create something out of nothing thats what we have Messi, Neymar, and Suarez for (to a lesser extent).
I'll give coutinho the benefit of the doubt, perhaps he could work out to be a good signing if we do get it him, BUT my feeling is that what this team lacks is not more attacking ingeniuty, flair, or brilliance, we have that in bucketloads. What we need is a midfield in the old fashioned sense, one that functions to make the team run smoothly, that creates for others that aids In build up but doesn't disrupt the flow of play, mainly there to link the team together.
Which is why Verratti is on most peoples which list. Not only because he is good, but because he is the type of player that we NEED. A mold that is scarce or unavailable.
Frankly, we are fucked. We are paying for years of neglect, bad choices and poor signings. We forget Iniesta was over 30, Rakitic albeit a good player was never a longterm solution, we brought in and relied on mediocre mid players like gomes, turan, rafinha.
Now we are running to make up for it. Now all the players we should have invested in are out of reach. Tough fuckin luck.