Yesterday, Deutsche Telekom CEO Timotheus Hoettges said T-Mobile’s Uncarrier direction is nice, but not sustainable. Rather than keep his disdain for that opinion internal, T-Mobile CEO John Legere took to Twitter. He didn’t even go on a Twitter tirade, which he’s done in the past when things irk him. Instead, Legere addressed his boss’ comment succinctly, directly, and without mincing his own words. Still, Legere doesn’t really hit at the heart of the matter, so the disagreement may be dead, but the issues aren’t.