I think you're being really harsh on Darren Moore here.
I'd say Byers, Dean and BPF were much better than "ok". NML, Berahino were ok.
Wing and Shodipo were both good signings based on last seasons performances but just didn't perform for us. Moore deserves very little blame here.
Corbeanu was one of our better players in the first half of the season. After we switched formations, he didn't fit in as much and was moved on.
Gibson was excellent when he played but unfortunately had a bad season for injuries. Again, not Moore's fault.
Sow, Kamberi and Brown have been disappointing and didn't work out.
What we have seen is that Moore can find and then attract the type of quality players we need. I was also really impressed with how he did in January. Pivoting halfway through the season and bringing exactly what we needed in.