well....i think that is about the players..... like my good MC, he is in my team for 10 season so far (i got him at 18...since than, he plays very well....and he is 28 right now...) at his 23, i got another MC to back him up....they both are fast trainer, and skill % are almost same (also both has FK)...now, one is 24....one is 28....the young one was doing good at the beginning, but now, when i put him on (cause i want to sell the 28 one....as he is getting old and not gaining exp fast)....the team doing not good... my team is 120%....vs a quit manger with ST, MC as DC...position not in order..... half time... i still only won 1:0...and other team even has more shoot than my team..... so, i took out the young 24 age MC....put the 28 age back....guess what... i won 8:0 at the end....

same thing happen in the CL....the 24 age MC on.... and i was not able to watch the game..... i lost 1:2 at home game.... and the opposite is only 75% vs my 120%-.-! one dump MC can mess up the whole team -.-!