Just thinking about it, there was only really Kone who was desperate to come, out of everyone we wanted but couldn't get? Witsel held out for Juventus, Hart was never seemingly a target (Stek appears to be his no1 choice) Lucas and Sissoko went elsewhere and Ghezzal said no thanks.
Koeman and Walsh weren't in place early enough to get their preferred deals over the line before silly season started. Next summer will be different.
Koeman was appointed in June. Walsh in mid July.
Sorry but your naive here.