All of them are now still going thru hard training until the last day of the season. So Power training will not be stop at any time to ensure they become legends again next season. Well kagawa and Haraguchi will become instant legends in season 3 but will still go thru training next season as all of them still fit into the training age so that they will be ready for level 4. Hopefully I will be able to maintain at least a first XI of legends thru out my career as the Washi manager
If you talking about personal trainer then its highly impossible because it would cost 1 player 750 tokens for the 75 skill points needed from 8 to 9* and with 21 players it would have to be 15750 tokens. Then more complaints will be post all over the forum.