Who are you training this season, what have you been training?
As it stands, looking at your team. I feel that my team would beat yours. But that's a coming down to managerial thing, and a salary efficiency thing, which since you said your entire roster is new, I'm guessing its not entirely salary efficient as it's hard to find salary efficient players cheaply in the marketplace.
Also, you have a few older players whom probably have experienced skill drops and are actually worse than their salary indicates.
Outside of your Big Center. you have 2 useable-ish players, and no one really whom I suspect can defend very well. So if someone can successfully defend your Bigman, OR prevent your guards from passing the ball effectively to him (shouldn't be hard) they could stomp you cold.
I think you have very very little chance to bot promote. And I think, that without some major over-hauling, your team will struggle to stay in D. IV if you did somehow promote.