I still can't actually parse the title. What is "college success working at scale"?

Edit: Ok, halfway through the article it became clear: The proper reading is

> "Why Aren’t SMS Interventions which are Designed to Boost College Success Working at Scale?"

and not the way I read it initially:

> "Why don't we design SMS interventions so that they boost college success working, at scale?"

Funny enough, this is a case where languages with different capitalization for noun vs verb (working, in this case) would immediately resolve ambiguities. Well, except for Title Case, I guess.