I would suggest you to shread ur trainees down to 3 by removing the last 3 players (Flores,gatner and myca).there are 2 reasons for that-
Firstly all 3 of them are 19 so have wasted a complete season and a half.well even if they were 18 still I wouldn't have kept Flores coz of his potential.u will buy a much better 18 y.o for bout 5k.myca has really low JR and OD and it would take bout a season to get them both to just respectable.though gatner has decent skills but his JS is really low so u can't kill the training of other player just to train him in that skill.moreover he too is 19 so it will be a waste of time to train him.
Secondly having 3 players in ur roster would give u an option of single pos training which in my opinion us the best and the fastest way to train any player.
Having said this u should first train the remaining 3 players in OD till all of them reach prominent .then train them in JR till zedda reaches to respectable.then u can focus on JS till all of them reach prominent.after that u can focus on other skills like driving,handling and passing.If u go according to this plan then in bout 3 seasons u will have 3decent guards who can help u win the division V and also help u survive in div IV
Hope that helped