Manchester City have drastically remodelled their squad for the second time in two summers after an action-packed transfer window, spending more than £500m ($677m) and recouping close to £300m.They waved goodbye to several underperforming players, like Tijjani Reijnders, Omar Marmoush and Nico Gonzalez — who were supposed to be important parts of 2025’s rebuild — and have moved in a new direction.That was something that was always going to be necessary, especially in midfield, given the departures of Bernardo Silva and Rodri, and the club have pushed to ensure Enzo Maresca has all the tools he needs to keep the team competitive, to win their first Premier League title since 2024 and to go deep in the Champions League for the first time since they won it in 2023.They did not have everything their own way in the transfer window, however, and it has left a couple of wrinkles when it comes to planning the squad for the season. Here, The Athletic analyses the strength of each position, identifies some potential problems and suggests some solutions that Maresca is known to be considering.GoalkeepersNumbers-wise, City are the same as last year and Gianluigi Donnarumma will continue to be No 1, with Marcus Bettinelli a popular No 3, but the No 2 role has probably been downgraded.James Trafford, 23, has clearly got a bright future ahead of him and helped City win two trophies last season, showing he could be relied on to come in for Donnarumma and do a good job, at the very least.Geronimo Rulli, 34, could prove to do the same job, but he is obviously not going to be the long-term No 1 that Trafford could have been. It would not have been a huge surprise if Trafford had managed to oust Donnarumma this season, had he stayed, though that seems more unlikely for Rulli. The Argentinian has plenty of experience and looks a solid back-up option — and could help his countryman, Enzo Fernandez, feel more at home — but few would argue he is better than Trafford as a total package.DefendersCity are very well stocked in defence, with the possible exception of right-back. They had hoped to strengthen that area in the summer and liked both Pedro Porro and Malo Gusto, but could not get either and decided there were no outstanding options to pursue for reasonable fees.They do have Matheus Nunes, who has made the position his own and played the vast majority of games last season. If that is possible again, then City will have few problems, although tactically it will be interesting to see how he fits because so far Maresca has been using the left-back to push up high, with the right-back staying deep. Nunes could do that but it does not really maximise his abilities, as he gets forward very well and covers a lot of ground.