A shame in some respects as Umbro's kits have, in the main, been of a very high standard, both in the look and in the materials used, Nike I'm not sure will be able to match this. However you've got to assume that a company the size of Nike will have viewed City as the "next big thing" in English, and European, football and will have paid us a huge sum of money. If you look at the Warrior Deal Liverpool have organised (even considering it's clearly a dodgy "mates rates" deal from the Boston based company) City must be getting £20m a season as a benchmark, Umbro simply won't have been able to compete financially with that kind of offer, and with FFP kicking in City have to maximise as many revenue streams as possible.