One thing that I find really helps greenies is to set up gymnastics with the fences all spaced perfectly so that you can go into 2pt and let him figure it out. As long as you are balanced coming into the combination, the beauty of a gymnastic is that it does the work for you and sets the distances for the horse. This means you can go into a 2pt earlier and let the horse figure it out - because it's spaced properly so that it essentially takes away the options of how he is going to jump.
Equisearch.com has some great articles on gymnastics and some great exercises to do with a green horse.
As for helping a horse out - while I certainly can and will help a horse out, I will also do a lot of exercises to give my horse the ability and initiative to think/figure it out for themselves. There's a great article on equisearch by jim wofford that discusses this and I know for me, I want a horse that if we do hit a bad spot or I make an error, the horse knows how to get out of a sticky situation. If the horse is trained to always rely on me, that means I have to be 100% perfect - and while that's a nice goal to have, not even the pro's are 100% perfect all the time. We all make mistakes. By allowing my horse to learn how to balance and jump without constant help from me i'm giving us both the ability to get out of trouble in a sticky situation imo. I know it's done wonders with my jumper when we are out hunter pacing and have an awkward distance or bad angle or the footing is less than ideal that he knows how to get it done, and he knows i'll do everything I can to help and if we're in a tough spot that i'll let him do his thing and I will get out of his way :)