Thank you for all your replies.
Very good analogy and reasoning.
KataBeachBoy I wld luv to train GG too.
So final conclusion - Scouts
But problem is my Scouts list currently 18 players
GK (2) - 22 yo and 28 yo
DC/DR (1) - 28 yo
DC (3) - 28 yo, 29 yo, 28 yo (1 with DMC)
MC (4) - 27 yo, 28 yo, 29 yo, 27 yo
DMC/DMR/DML (2) - 26 yo, 28 yo
DML (1) - 29 yo
AML (2) - 28 yo, 28 yo
ST (3) - 26 yo, 28 yo, 29 yo