A question for Tom & Neal Gleason

I’ve asked you, Neal Gleason and others, but all of you avoid the question. Let’s try one more time.
Do you believe a 50%-60% success rate for Reading Recovery is about all that can be achieved because 1) some students just can’t learn or 2) no one knows how to teach struggling first graders or 3) the MMSD doesn’t know how to teach those first graders?