I am selling my large pony so she can go off to teach someone else and help them grow the way she did for me. I am looking for something I can learn more with and maybe get up to higher level jumping with. I am looking into a lot of thoroughbreds (there are so many for sale around me!) and one QH. Haha Most of the TBs are OTTBs but have been started with retraining. I've also been looking at horses on canterusa.org and have even started considering some of the horses on there. But I'm not completely sure how to go about retraining an OTTB. I've been watching some of Clinton Anderson's retraining the OTTB (not into NH but I like him) and I've been around them all my life and have aided in training, retraining, and schooling, etc.
What are some things I need to think about when considering such a big project?