Also, the comparison between the two isn't as lazy as suggested, as the career trajectory of Drinkwater should provide a salient lesson for Barkley and all professional footballers. Big move doesn't work as hoped, stop playing football almost entirely during your peak and end up on the scrap heap at 30!
Barkley should move, and lay the foundations of a brilliant career, rather than one with a few bright spots and a lot of hype. Could be an excellent signing.