I think those of you that demand a DoF find and sign the best-value talents from across the league, which you cherry-pick after the fact, are dramatically underestimating the complexity of the process. First, we have to scout them. Then, we have to convince them to come here. Then, we have to convince the agent and selling club to move the player at a price we can afford. It's a high-risk process that frequently doesn't work out, after a signing.
If you look at top clubs' signings, they brick as often as they hit, while throwing bags of cash at top talents who want to go there for CL football. I don't know if Brighton is truly doing things right, or if they're just on a hot streak with signings. Walsh's results here suggest he was just on a hot streak at Leicester, in no uncertain terms.
6 hits and two misses, which appear to have increased the value of the club's asset base and also fulfilled the minimum pitch requirement, seems like a good summer's work to me. The big mission this summer is getting the forward signing(s) right. If we add the goals and keep the improved defense, we'll be comfortably mid-table and able to sell some players to buy some more young talents, which should sort our depth problems.