Paula Shannon is the supervising principal of Achievement First Providence Mayoral Academy Elementary.
That's ex-PPSD Chief Academic Officer Paula Shannon. The only thing I can say with any certainty about this is that they've got two principals (a "founding acting principal" and a "supervising principal" according to the webpage) for a school with two grades.
It seems to me that RI's charter sector has a lot of leadership with PPSD experience. Hard to tell if this is unusual, but it certainly doesn't fit the hype.