Now that T-Mobile USA has completed its marriage with Sprint – and got its clutches on the most prized piece of the dowry, Sprint’s hefty chunk of 2.5 GHz spectrum – the work of integrating their networks and customer bases begins. This will not be easy. In some ways the operators’ networks are complementary, so there should not be too much rationalization – TMO has built its early 5G for coverage, in its plentiful 600 MHz spectrum, with small amounts of millimeter wave; while Sprint has focused on 4G and 5G build-out in 2.5 GHz. However, while the spectrum combines to give TMO an ideal position, the networks themselves have been built very differently, and the two companies have contrasting…