Hey Greggs
You have pretty weak players for Div.III, however you could still put up a decent fight if you would manage you're gameshape and enthusiasm. This is how I managed to beat most superior teams from my league. Enthusiasm makes a big difference. It's well worth loosing a few games in order to build it up for some more important ones.
Anyway, good luck in Div.IV. You should be able to promote back within a season if you get some new players and better manage their training/gameshape/enthusiasm, etc.