The only player that worths training is Bruno Zurlo, however he is 19 years old, so try to get a Level 4 trainer to start and 1 position for him...try to get at least two other players (18 year old), train 3 players and resell them to make some revenue. You probably want to fire your benchwarmers and as for Glenn Jones, he is a 29 year old player with no potential....
It takes some time to build the team and enjoy..