The Koeman/Walsh relationship is probably the most interesting thing about this. Is Walsh doing an outright horrible job of identifying suitable targets? Or is Koeman shooting his targets down because he doesn't like them? Or did Koeman and Walsh both think this mess of squad was a good idea? Or are Kenwright and Elstone secretly sabotaging them in the negotiating room?
It was mentioned on the podcast that Koeman needs to see the players personally before he signs off on them. If true, that's a totally fucked process. We shouldn't be assigning any weight to Koeman's player evaluations unless he's seeing the player for a full season's worth of games (which I seriously doubt is the case) and even then, I'm skeptical. For the scouting team to watch a player for a full season (or over multiple seasons), put the player forward as a suitable target, then have their opinions dismissed because the boss saw him once or twice and didn't like him... yeah, that doesn't make any sense. Koeman's only role should be to confirm that he'll be able to get along with players personally. He needs to trust the scouting team that the players fit the criteria he's given them.
(Again, all based on rumours. We don't really know what the process is. All we know is that it isn't working.)