I completely understand that lots of players who want to move end up getting their way. I thought the question was how Coutinho would react if he doesn't get his way. History suggests that the vast majority of players that are put in the position knuckle down - again I can only think of Berahino in recent years that hasn't.Plenty, yet there are plenty more who asked for a transfer and got it. Player power is rife in the game.
Whether he will knuckle down remains to be seen, which is what I said originally, we don't know how he will react. It's an expensive risk imo.
Looking at the way this transfer window is going, it looks like we're going to have plenty of future examples as Coutinho appears to be just 1 of many players that don't look like getting their way.