External challenges are outside team or school control, potentially explaining why hard to resolve
rather than issues directly under the control of a school BTAM team or the school more generally, potentially explaining why they may be especially difficult to resolve.
Why inferred The sentence crosses a page break: this quote is the page 104 part and the sentence begins on page 103 (claim p103-08). Full sentence (pages 103–104): “Importantly, these top two challenges relate to external factors rather than issues directly under the control of a school BTAM team or the school more generally, potentially explaining why they may be especially difficult to resolve.”
cite page 104 Ch 13: Sustaining and Improving BTAM Programs over Time