The antitrust hearings, the 5G grandstanding, the eleventh hour legal challenges, the haggling over Sprint’s valuation – the saga of the T-Mobile/Sprint merger process is over at last. And now the real work begins … Integrating two very different companies, with very different networks, cultures, brand images, consumer propositions and leadership styles is never easy. Doing it in a market where there are two larger incumbents and a group of active challengers, and under intense time pressure to keep up with all those operators in the 5G roll-out, is even more challenging. And expectations are high, given how much the argument for regulatory approval relied on the promise that a merged entity would deliver a world-class 5G network, and new…