maybe it should apear to not only when he grows with one point....but every day after update should appear at what level is training at that skill....for exemple passing...0.78...it whoul help us to know exactly how much training that player needs to improve passing skill
it's too simple like that
it's better not to know decimals of skill, make the game more difficult...
other italian managers suggest me other way like make the popped skill green for a day, or take a little up arrow near skill popped until next train
but I think that a notify it's more permanent for user who cannot connect for 1-2 days