Undoubtedly, we can look forward to just such a cascade regarding part time employees.
I know this from experience; I was a writer on an early example of a show to benefit from this cascade of affection.
It does not mean that what happens anywhere should always lead to a cascade effect.
1640s, from French cascade (17c.), from Italian cascata "waterfall," from cascare "to fall," from Vulgar Latin *casicare, frequentative of Latin casum, casus, past participle of cadere "to fall" (see case (n.1)).
1702, from cascade (n.). In early 19c. slang, "to vomit." Related: Cascaded; cascading.
cascade cas·cade (kā-skād')
A succession of actions, processes, or operations, as of a physiological process.