Verizon has seen zero revenue growth since something like 2012 or 2013. 7% employee cut, against a 12%-14% inflation erosion of their business. Everything they've done over that time has been to just stand still while T-Mobile eats their market out from under them.
In a more practical consideration, they're very likely going to need less people going forward because they're going to keep losing market share to a more nimble competitor. They'd be the last to admit that of course.