[Quickfire Questions and Answers Thread (Tactic and Training Questions Only)]

How do you improve mental attributes that can't be individually trained like concentration and decisions? Do the increase as the player gets older? Or do they increase as part of training for a particular role for which they are required?

[Quickfire Questions and Answers Thread (Tactic and Training Questions Only)]

After trawling different threads on here for months I'm left with a stupid question. I've seen that when using fluid and very fluid on a tactic apparently it's inadvisable to use certain roles i.e ones with specific duties like box to box midfielder or ball winning midfielder can anyone tell me whether this is definitely the case and also why exactly it is the case? Furthermore, is, say, a central midfielder best suited to a deep lying playmaker role on defensive duty perfectly suited to being a cm (d) in a fluid system?