In Disney’s Q2 earnings report on Tuesday, the company said that revenue for its cable networks division increased 3% but profit decreased 3%. It explained that this way: “The decrease in operating income was due to a decrease at ESPN… The decrease at ESPN was due to higher programming costs.”

The same exact sentence, almost verbatim, appeared in its earnings report for the past three quarters in a row. (See: Q2 2O17; Q1 2017; Q4 2016.)

It’s become the de facto narrative every time Disney reports earnings: ESPN gets framed as the dark cloud of “doubt” that “drags down” Disney. And indeed, ESPN has lost more than 10 million subscribers in four years. ESPN is still profitable for Disney—which too many hot-take stories overlook—but less profitable than it was in the past. (Last month, ESPN cut more than 100 employees, most of them on-air talent.)

And when Disney reports these dour numbers, pundits like to sound off on what exactly ESPN is doing wrong. Many vocal people on Twitter blame politics and accuse ESPN of going liberal. TV analysts point to the rise of cord-cutting that has plagued the industry at large.

But the largest problem ESPN faces is simple, stark math: it is paying more and more in rights fees to show games, while suffering more and more subscriber losses.

The scale is tipped on the wrong side. This situation is untenable.

ESPN will spend $8 billion in 2017 in programming fees.

It pays $1.9 billion per year to show 17 Monday Night Football games. It recently signed an eye-popping new deal with the NBA that took effect this season: $24 billion for 9 years, or $1.4 billion per year. It pays $700 million per year to show MLB games. It pays $600 million per year to show the College Football Playoff and other bowl games.

BTIG analyst Rich Greenfield has called these astronomical agreements ESPN’s “big mistake.”

But ESPN president John Skipper has insisted the NBA package (the deal most commonly criticized recently) was not a mistake. And on Disney’s Q2 2017 earnings call Tuesday, Disney CEO Bob Iger said that ESPN will continue to pay big for rights fees.

We will continue to be aggressive at buying live sports rights,” Iger said, “which have not gotten cheaper, we understand, but have gotten only more valuable.”

Iger isn’t wrong, in the sense that anything ESPN does not bid for, it risks losing to Fox, which has tried to make its FS1 network a direct ESPN challenger.

But something has to give. ESPN cannot continue paying higher and higher fees unless it also turns around its business. Judging by Iger’s comments, it will do that by focusing on one word: mobile.