Yes, you're actually probably better than 8-10 teams in my league...I think the biggest problem with your team is your arena size though, tbh. You've probably been spending a ton of cash getting those amazing players that you have, but in general I'd advise DV teams to stick to a team salary that is really just good enough to ensure victory and spend the rest of the money on arena size. When I first got into DIV this season I was able to compete right away because of all the extra cash I had inflowing my arena...
So yeah, if I had to give advice to you DV teams, I'd say constantly upgrade your arena size and also make sure you are training good players. I'm personally of the belief that in DV you should get 3 trainees, 18 or 19 of age that are 6th man - star potential (much cheaper) and just train them with a level 4 trainer. These guys will be your stars when you get to DIV and will be able to carry your team while you switch to buying better trainees that will then be able to carry your team in DIII and DII...or at least, that's my current plan...