First things first, pay no attention to the player's position listed in the top right corner. Those are only suggested. I'm only saying this because it looks like you kept 1 of each +1 other.
Second, Lucey is only 19 and has pretty good potential to begin with, but your three guards are good fillers until you find their replacements. Your PG is getting up there in age though so you might need to find sooner than you would like to.
Without knowing what your roster actually looks like, Herman (PF) and Lucey appear to be your only solid trainees to begin with.
Decide what direction you want to go as a team on the court. Worry about building up your stadium, get 1 good player (don't spend a lot, just one that will be good enough to win you more than a few games. A good scorer, either inside or outside will put pressure on the opposing defense but keep in mind to build your defense, otherwise, the effort of that scorer will be fruitless.
Alright, quick summary: build your stadium because one you move to League IV, you'll want to benefit from the extra income. I have not looked at your ticket prices, but start comparing what you are listing the tickets at with those owners of successful clubs in the same division. When you feel like your team will be moving up to IV, start doing your analysis clubs in IV so you can prepare to raise your prices. Lower ticket prices combined with winning more than a few ball games will cause your fan rating to go up and in turn, expect your revenue to increase. Shop around for a good, young scorer, maybe between ages 28-32 as they can be cheaper and could come with a good amount of experience which, believe it or not, might possibly be the x-factor in a lot of your games. If that doesn't sound beneficial, search for a young trainee to pair with Lucey and start doing 1-position training. If you can find a young trainee with good potential (does not have to be better than Starter or All-Star), you can build two or three good players out of Herman, Lucey, and this young trainee which will help propel your team to IV.