It’s an interesting summer from that point of view, say for example you need 8 players (not necessarily 8 starters) and have a budget of 120m- do you buy 8 15m players (a very low price point for PL players these days, but sometimes you get an Ndiaye) or aim for 4 30m players to up the quality then pad the squad with 4 loans / frees?
Can see the argument either way- the former strategy like you say spreads the risk and if you are buying fairly young could yield a good amount of profit in the future, but would it substantially strengthen the first team short term?
I guess it comes down to a balance between strengthening the floor v raising the ceiling.