creating new role for players is it worth the effort?

[pele]

I have a 19 year old 4* ML with dribbling ability. I started a new role MC for him but feels like its not worth the effort. as he was playing well in ML and probably I could have made him close to 5* ML with the form he had.

So is it worth creating new role or ability?

thanks

I used to think having players capable of playing in multiple positions is useful. However, I've come to learn that multi-position players won't be as good as single positioned ones.
For instance, a DC/DL at 120% is made up of attributes for both positions. That means, the player may have 110% tackling (DC), 140% crossing (DL), 130% strength (DC), 90% speed, etc.
On the other hand, a pure DC at 120% will have high stats that are limited just to its single position, like tackling, marking, strength. Its rating won't be boosted by DL stats like crossing, speed, aggression, etc. I hope I'm explaining it well.