There's a few in there that will serve you no purpose. Get rid of Stefan Rabe, Mirko Stern, Heiko Weinrich. I doubt you'll get anything for them in the transfer market, so it's probably worth just sacking them straight off.
You've got some good players there that are worth keeping. Your 29 10 striker will be useful, as will your 24 8 midfielder, 24 9 defender and 27 8 keeper. Keep those above all costs.
But yes, not a bad starting team. You can do a lot with that. It all depends what you want to do right now. You'll want to bring in youth players who can put you in good stead for the longer term, players around the 18 4/18 5 mark will be a priority. Aside from that, you have quite a lot of middle of the road players, like your 23 6 defenders who aren't amazing yet are not terrible either.
Based on that team, you have strength in goal and in attack.