It worked - because we got super-clever!
On top of great media buying, we used our own programmatic software to control spend, making sure we brought in the perfect number of pre-qualified candidates, not simply clicks or enquiries - before we turned the spend off.
As a result, Bright Horizons went from zero to hero - from no good quality applications to the high quantity we delivered. And from these, they continue to fill all their roles - in fact they even had to create new ones as we actually over-delivered too many great candidates. Who would've thought...