Did you know that Man City has won the Premier League trophy 5 times in the last 6 years? Man City know very well what kind of performance they need to apply at any given time. and they play very seriously in every match. no matter how much Liverpool occupies the 1st position in the points table. I think Man City have a chance to lift the trophy this year as per my prediction. Yes their opponent Brentford played well enough in today's match but with Man City's performance they couldn't defend themselves in the second half.
It's because Manchester City has an unlimited funds to buy dreams manager and player, while in Liverpool the owner is stingy, even though they sign a good manager, but they didn't give funds to buy dreams player.
If Liverpool give as much as Manchester City did, Liverpool will become very strong rival and they might able to win many many trophies.
This doesn't always happen, though. Look at another Manchester team. United is one of the most generous teams in this regard. They also pay high transfer fees, but they cannot get the output they want from the players. That's why the most important thing is not just to spend the money, but to spend the right money to the right person. That's why I think Liverpool can build the best squad by not only spending money but also by recruiting good scouts and the right players.