A lot of unsung heroes like Olayinka, Ballard and Gilmour aswell who've improved a great deal under Ljungberg. Ballard, in my opinion, is actually more ready for first team football than Zech Medley is - but Medley is a good 3 inches taller and arguably a better technician. Ballard is stronger defensively IMO.Hard to blame him though, it has been mostly adaption progress because Nelson, Smith-Rowe, Willock and Nketiah haven't played as much as last year.
Still he has managed to get Saka and Amiechi up to speed at this level and I think many other players have seen a lot of improvements individually although the team results hasn't been all that good.
It will be exciting to follow Ljunberg and see what his ambitions are in the near future!
He has done extraordinary work with Willock and Saka though, and Amaechi's off the ball running and use of the ball has continued to improve under Ljungberg too.