Yes, the big teams in the Premier League are indeed competing to strengthen their squads for next season. That's why these teams are making quite aggressive and expensive player purchases. Speaking of Manchester City, I think this team also brought in quite a lot of players in this transfer window. Although the players Manchester City brought in weren't as expensive as those brought in by rival teams, I'm sure Pep had a strong reason for bringing in only those players. Perhaps Manchester City currently has sufficient squad depth, so perhaps for that reason Pep didn't bring in expensive players in this transfer window. Because due to the declining performance that befell Manchester City last season, I don't think it was due to the players being bad. But rather, it was caused by the declining chemistry between the players. So, perhaps because of that, Pep didn't need expensive players to be brought in this transfer window.
I think whole scenario is going to be a very interesting season. Because almost all the clubs are trying to have the strong players which cause them good results. Manchester city is too active in this transfer window to get the best and even the expensive one. Liverpool is also trying to have the best in fact all are in the same race. Everyone is trying but i think for Manchester United it will be challenging as they are facing many issues. Their coach is also in the process of working hard to change the results of the team. the fans and their expectations to Manchester United very high and results were not matching with the expectations. So if they failed to do well i think it will be a grand disappointment for the fans that the team has not much capabilities to fix their problems.