Kakashi didn't teach the team a lot of individual skills. He taught them all that teamwork was the key to succeeding as a ninja. He taught them charkra control, tree climbing. He told Sakura that she had to care for the whole team not judt Sasuke. He kept telling Sasuke there were other ways to live than jsut revenge/hate. He told Naruto that he had to start thinking, not just rush in but observe and plan ahead.

All of them learned these and more from him but as we have seen they don't always put high stock in it.

ie Naruto still rushes in, Sakura still whines and crys about Sasuke and treats Naruto like crap, Sasuke ran off to get power from Oro and kill Itachi.

IMO Kakashi is a good teacher, he jsut didn't take the time to really develope them, he rather pointed out what to work on and then let them work on it.

I forget but in some ep, he comments on how amazed he is at how far Naruto got better on his own.