What would be inspirational, achievable, and impactful goals for the charter movement over the next ~10 years?

How about this:

1. 3-5 cities grow to 75% market share and achieve ~.1 effects.

2. 10 cities grow to 50% market share and achieve ~.1 effects.

3. National charter sector doubles in size to ~6 million students and achieves ~.05 effect.

Question: could anyone argue that attaining these goals would be bad for children? If so, why?

Perhaps you could argue that the short-term academic gains for children would be wiped out overtime by the eroding of existing educational institutions.

I’m skeptical that this argument is of merit, but it’s hard to falsify.