Oh really, why then do all the bigger teams use a disiplined defensive midfielder? Makelele at Paris Saint-Germaine, Masherano at Liverpool, Hargreaves at Man utd, Flamini at AC Milan. Even the mighty Brazil use and or even sometimes two holding midfielders. I could name alot more teams aswell.
So no it's not all balls. Successful teams use disiliplined holding midfield players so we should copy.
Have you ever watched Appiah? He's the most attacking out of Ghana three top midfielders. I'd put him in the box to box role but he's alot more attacking than he is defensive.
Tall? He's about 5ft 10. As I've said we could get better options.